Acura RLX Reviews (Sport Hybrid reviews pg 21)
#1001
Pro
I have to say my experience with Sports Hybrid is different than the reviewer quoted above. While I am not an experienced reviewer or professional driver, I do have more time behind the wheel than the reviewer. I have found the handling superior to any other cAr I have driven. It is a somewhat different experience than other conventional car and does take some getting used to but this car holds it own around tight corners. In short my car is a joy to drive and one of the big reasons is the way it handles and the power it has. If you want a large luxury sedan you will be hard pressed to find another with the abilities of the Sports Hybrid, any least in my opinion.
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#1002
Three Wheelin'
There is no shortage of Canadian "Auto Journalists" who likely test cars part time and flip burgers at McDonalds as their full-time jobs - that is, little in the way of credentials are required to call yourself an automotive reviewer. I'm hearing "hey, when you are done mopping that floor, do you want to go test drive an Acura??"
I doubt the car tested was a 2015, but rather the "reviewer" wasn't informed enough to know what he was testing. It is also possible that he achieved the 0-60 time mentioned - if he didn't put the car in sport mode and it launched in 2nd gear with the reactive pedal fighting his right foot.
I doubt the car tested was a 2015, but rather the "reviewer" wasn't informed enough to know what he was testing. It is also possible that he achieved the 0-60 time mentioned - if he didn't put the car in sport mode and it launched in 2nd gear with the reactive pedal fighting his right foot.
Last edited by hondamore; 11-06-2014 at 11:14 AM. Reason: Lots of typos from being ticked off at the reviewer
#1003
Torch & Pitchfork Posse
^^^
ANYONE with internet access and a phone camera may claim to be an authority on the internet.
How many 'First Look' and 'Reviews' have you seen online that were merely a stream of pictures with a soundtrack to club music?
Even those with journalistic credentials are likely to be subjective on attributes such as style and ride comfort. I tend to find and follow the reviewers that align with my taste.
But measuring every car, especially pedestrian sedans against a sports car benchmark is only beneficial if you wish to know limits, not evaluate how it will serve you as your everyday commuter.
Every time I see the millisecond carps about a tranny shift point or 0-60mph in a 'review' my thought bubble goes to 'how will this behave maneuvering a parking lot, or hunting a parking space in a garage, or will my neck suffer whiplash in stop and go traffic? I cannot tell you the last time I drove Nuremburg or Sebring....
My favorite comment from James May (Captain Slow of Top Gear) is he wanted to buy a car that was NOT tested on Nuremburg.
ANYONE with internet access and a phone camera may claim to be an authority on the internet.
How many 'First Look' and 'Reviews' have you seen online that were merely a stream of pictures with a soundtrack to club music?
Even those with journalistic credentials are likely to be subjective on attributes such as style and ride comfort. I tend to find and follow the reviewers that align with my taste.
But measuring every car, especially pedestrian sedans against a sports car benchmark is only beneficial if you wish to know limits, not evaluate how it will serve you as your everyday commuter.
Every time I see the millisecond carps about a tranny shift point or 0-60mph in a 'review' my thought bubble goes to 'how will this behave maneuvering a parking lot, or hunting a parking space in a garage, or will my neck suffer whiplash in stop and go traffic? I cannot tell you the last time I drove Nuremburg or Sebring....
My favorite comment from James May (Captain Slow of Top Gear) is he wanted to buy a car that was NOT tested on Nuremburg.
#1004
Senior Moderator
![Smile](https://acurazine.com/forums/images/smilies/smile.gif)
At the risk of sounding like an Acura fanboi, I have to say that I agree with Malibu Flyer. This car was definitely worth waiting for.
#1006
:-/
The computer can't make up for bad driving.
Odds are the car was less squirrelly and more trying to make up for his conflicting commands.
Although the car's big enough that you can make it handle in a potentially ungainly fashion, what the reviewer describes as understeer is a sign that the car interpreted the driver's movements of the steering wheel as potentially dangerous.
The car tries to give you the reins. There are times that if you know the car you will have to be prepared for the nose to point. Once you get used to the car, you will know how to point it without causing anything like what the reviewer called sudden oversteer.
If the reviewer experienced any kind of sudden nose point it is because that is what he told the car to do, and his movement was (at that moment at least) smooth enough to cause the car to believe that he wanted to do something.
I've driven the Sport Hybrid fairly hard and although there's no denying it's a big car that isn't going to handle like a sports car, the computer systems work very hard to keep the car neutral and going where you pointed it. If he experienced either understeer or oversteer, I suspect the problem is in his hand movements or in his perceptions of what the car was doing, rather than what the car was really doing compared to what he wanted it to do.
Only getting a 5.8s 0-60 time is further evocative of the driver not knowing exactly what he wanted to be doing. Even Alex Dykes got 5.3s on the preproduction car with all season tyres.
Come on, now, Mr Reviewer. Geeez....
The computer can't make up for bad driving.
Odds are the car was less squirrelly and more trying to make up for his conflicting commands.
Although the car's big enough that you can make it handle in a potentially ungainly fashion, what the reviewer describes as understeer is a sign that the car interpreted the driver's movements of the steering wheel as potentially dangerous.
The car tries to give you the reins. There are times that if you know the car you will have to be prepared for the nose to point. Once you get used to the car, you will know how to point it without causing anything like what the reviewer called sudden oversteer.
If the reviewer experienced any kind of sudden nose point it is because that is what he told the car to do, and his movement was (at that moment at least) smooth enough to cause the car to believe that he wanted to do something.
I've driven the Sport Hybrid fairly hard and although there's no denying it's a big car that isn't going to handle like a sports car, the computer systems work very hard to keep the car neutral and going where you pointed it. If he experienced either understeer or oversteer, I suspect the problem is in his hand movements or in his perceptions of what the car was doing, rather than what the car was really doing compared to what he wanted it to do.
Only getting a 5.8s 0-60 time is further evocative of the driver not knowing exactly what he wanted to be doing. Even Alex Dykes got 5.3s on the preproduction car with all season tyres.
Come on, now, Mr Reviewer. Geeez....
#1007
Safety Car
Thread Starter
![Arrow](https://acurazine.com/forums/images/icons/icon2.gif)
Overview Somewhat somnolent styling masks a very sophisticated powertrain
Pros Power, fuel economy, sophistication
Cons Weight, rear trunk storage capacity, complicated AcuraLink infotainment system
Value for money Excellent
What would I change? Less complication to the AcuraLink system and, in an ideal world, build the entire car out of aluminum to reduce the weight penalty of the electric drive system
How I would spec it? Just the way it is
Acura’s new RLX Sport Hybrid may be the best car you’ll never test drive. Never mind the reasons — the somnolent styling or the disastrous name change from Legend to RL — for the drop off in what was once the most popular luxury car in North America (the Legend accounted for almost half of Acura’s sales at its peak), the Sport Hybrid version of the RLX is 1 of the most supremely sophisticated luxury automobiles money can buy. Indeed, not only is the electrified version of Acura’s Super Handling All-Wheel-Drive system the technological equal of Porsche’s million-dollar 918, but it also will provide the underpinning — albeit with the gas engine moved rearward and the electric motors forward — for Acura’s own supercar, the much-anticipated NSX.
Unfortunately, if the recent sales history of the RL is any indication (Acura has sold, on average, less than 150 RL/RLXs annually since 2008), precious few of you will ever find yourself behind the wheel of this gem. More’s the pity.
![](https://cimg4.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_12_c4657b1f15adc328c3c85a094a95d30a14f4c977.jpg)
So, what makes this 2015 top-of-the-line Acura so noteworthy? For 1 thing, it sports no less than 4 separate motivators, 1 of them gasoline — Acura’s ubiquitous 3.5-litre V6, this version with 310 horsepower — and 3 electric motors, one 47-hp version mounted directly to the engine/transmission unit and 2 more 36-hp units individually powering the 2 rear wheels.
More importantly, the finesse with which they power the RLX is nothing short of astounding. Depending on the mode, 1 can have the gas engine alone driving the front wheels or, if all hands are needed on deck, all 4 simultaneously coming together for 1 (fairly rapid) 377-horsepower charge. Under more moderate demands, only the 2 electric motors are used when leaving a stoplight, their low-end torque providing at least modest acceleration. On fairly level ground, the hybrid RLX can also glide at speeds up to 80 kilometres an hour on electric power alone. And in slippery conditions, the combination of the gas engine powering the front wheels and the electric motors powering the rears provides the all-wheel-drive traction needed.
Were this all the trickery the Sport Hybrid had to offer, however, it would be a waste of complexity — far less sophisticated hybrids perform much the same feats. The last little trick in the RLX’s repertoire, the part that has me salivating at the prospect of this technology fully NSX-ed out, is that Acura uses those 2, individually controlled, rear electric motors to torque-vector power distribution.
![](https://cimg6.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_2_3c5c98f163f6a3565c1cfae220fdb2aed660f24e.jpg)
For the uninitiated, torque vectoring is the fancy-schmancy buzzword for transferring differing amounts of power to the rear wheels to get sporty cars to better turn in. Essentially, what happens is a microcomputer slows the inside rear wheel while simultaneously speeding up the outside rear wheel, both actions encouraging a more rapid pivot. In traditional all-wheel-drive systems — like Acura’s own Super Handling All-Wheel-Drive system — this is accomplished by simply braking the inside wheel while sending more power to the outside.
The infinite controllability of the RLX’s electric motors, however, allows Acura to slow the inside rear wheel by reversing the polarity of its motor while sending more electrons to its opposing twin. Keen minds, especially the environmentally conscious, will recognize the inside wheel’s reversal of polarity as the regenerative braking credited for the superior fuel economy of their electrified cars. This means that while cornering hard, the RLX is actually recharging its battery. Many modern cars claim to marry the seemingly disparate capabilities of performance and economy. Only 1 — the RLX Sport Hybrid — can profess to do both simultaneously.
![](https://cimg8.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_5_c78eae1d9cb33c0f5203e63e817424e2b44d6c18.jpg)
That’s all fine and good, but how does Super Hybridization work in real life? Well, Acura says it offers the performance of a V8 with the fuel economy of a 4-cylinder. Half of that claim is absolutely true, Acura’s specification of 377 horses seeming to underestimate the RLX’s acceleration. On the other hand, positing that it sips fuel like a 4 seems like a fairy tale too far, my 9.3 L/100 km average about 20% higher than the 7.7 L/100 km the RLX is rated for. NRCan’s 7.5 L/100 km highway rating seems pretty spot on, but claiming 1 can get by on just 8.0 L/100 km of city driving seems a tad optimistic. Nonetheless, a 9.3 L/100 km average in a mid-sized luxury sedan weighing 1,980 kilograms is none too shabby. Besides, the Sport Hybrid is, like other hybrids, somewhat temperature sensitive. In warmer temperatures, it switches, more immediately, into its EV mode and will also travel farther on electric power alone both of which should bolster the consumption a little.
Is the RLX all that a hybrid can be? Not yet. Had Honda been more daring, it might have constructed its topflight sedan — a la Audi and Jaguar — of lighter-than-steel aluminum. The weight savings might then have allowed a bigger battery than the minuscule 1.3 kW-h lithium-ion affair, offering perhaps even more power and certainly longer EV operation. The battery also takes up a fair amount of space in the trunk, limiting cargo capacity.
That said, the integration of said battery, 3.5L gas engine and 3 electric motors is the most comprehensively choreographed ballet of electrons and hydrocarbons yet. That all this sophistication costs but $69,990 is message worth trumpeting. The RLX is deserving of more attention than it will get.
Handling, interior also impress in the RLX
![](https://cimg1.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_1_77ee0a2c9073e4395b61a0def0da5d011f310cbd.jpg)
Lost in all this talk of sophisticated high-techery, I hardly mentioned the RLX’s more salient points such as handling and interior comfort. As for the former, the Sport Hybrid handles more adeptly than its somnolent exterior styling would indicate. It’s no BMW, but neither is it a Lexus LS460. Combined with an engine that makes distinct vroom noises, there is a surprising sportiness to the top-line Acura.
The interior is everything you’d expect of an Acura. It’s refined, luxurious and loaded with tech. My only complaint would be this last. The AcuraLink system is unnecessarily complicated and relatively difficult to manipulate. Ordinary tasks like pairing of phones or managing the split screen simply take too much effort compared with other systems. And with 3 different screens — the traditional gauges, the radio/air conditioning interface and the AcuraLink screen, there’s just too much going on. The leather seats and the push-button transmission, on the other hand, are to die for.
A breakdown of the Acura RLX Super Hybrid’s Drive Modes
![](https://cimg2.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_6_cc6c9d5cbec737dfb2627e699a95f91dcf06523b.jpg)
The RLX Sport Hybrid SH-AWD system is a model of complexity and ingenuity, its V6 gas engine, front electric motor and twin rear-mounted electric motors all working together in complete harmony. Depending on the situation, the Sport Hybrid can work in the following modes:
EV Launch: Under light-to-moderate loads, the rear motors alone provide driving power, relying strictly on the battery. In EV Launch mode, on a fully charged battery, the RLX may be able to travel as long as 10 kilometres.
Engine Drive: Under gentle acceleration after launch, the front wheels pick up the load using engine power only, while the front motor reverses polarity into a generator pumping electrons back into the 1.3-kilowatt-hour lithium-ion battery.
EV Cruising: When cruising at speeds lower than about 80 km/h, the rear motors can power the rear wheels using only battery power.
Power Acceleration: Under hard acceleration, at speeds up to 120 km/h, all 4 wheels are driven through a combination of the gas engine driving the front wheels and the rear electric motors powering the rear wheels. The front motor only provides assist under acceleration from a standing start and doesn’t contribute any motivation at highway speeds.
Engine Drive: Under gentle acceleration after launch, the front wheels pick up the load using engine power only, while the front motor reverses polarity into a generator pumping electrons back into the 1.3-kilowatt-hour lithium-ion battery.
EV Cruising: When cruising at speeds lower than about 80 km/h, the rear motors can power the rear wheels using only battery power.
Power Acceleration: Under hard acceleration, at speeds up to 120 km/h, all 4 wheels are driven through a combination of the gas engine driving the front wheels and the rear electric motors powering the rear wheels. The front motor only provides assist under acceleration from a standing start and doesn’t contribute any motivation at highway speeds.
![](https://cimg3.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_8_5ad0415f31ed3818eee1af106c7a0cddd225c4f2.jpg)
Engine Cruising: When cruising at higher speeds, Acura has determined that the best fuel economy is achieved by having the gas engine alone power the front wheels. The front motor-generator, meanwhile, charges the battery whenever possible, using excess engine power.
Deceleration: When braking, both the front and rear motors reverse polarity and pump electricity back into battery pack. In this regeneration mode, the engine is disconnected to eliminate engine friction and maximize the recharging.
AWD: Under slippery conditions, all 4 wheels are driven using the gas engine to power the front wheels and the twin electric motors for the rear wheels.
Cornering under Deceleration: The inside rear electric motor reverses polarity, providing negative torque to the inside rear wheel. Positive (driving) torque continues to be applied to the outside rear wheel, offering faster turn-in. The reversing of the polarity of the inside rear motor also provides regenerative braking, recharging the battery
Cornering under Partial Throttle: Optimization of front-to-rear and right-to-left torque distribution for improved cornering performance.
Cornering under Acceleration: On corner entry, the same torque split is used as cornering under deceleration, i.e., negative (regenerative braking) torque on the inside rear wheel while more power is transmitted to the outside tire. At corner exit, however, this positive torque is sent to both rear wheels to provide maximum acceleration.
Deceleration: When braking, both the front and rear motors reverse polarity and pump electricity back into battery pack. In this regeneration mode, the engine is disconnected to eliminate engine friction and maximize the recharging.
AWD: Under slippery conditions, all 4 wheels are driven using the gas engine to power the front wheels and the twin electric motors for the rear wheels.
Cornering under Deceleration: The inside rear electric motor reverses polarity, providing negative torque to the inside rear wheel. Positive (driving) torque continues to be applied to the outside rear wheel, offering faster turn-in. The reversing of the polarity of the inside rear motor also provides regenerative braking, recharging the battery
Cornering under Partial Throttle: Optimization of front-to-rear and right-to-left torque distribution for improved cornering performance.
Cornering under Acceleration: On corner entry, the same torque split is used as cornering under deceleration, i.e., negative (regenerative braking) torque on the inside rear wheel while more power is transmitted to the outside tire. At corner exit, however, this positive torque is sent to both rear wheels to provide maximum acceleration.
![](https://cimg7.ibsrv.net/gimg/acurazine.com-vbulletin/1024x661/rlx_3_4ebedb85951a9c058c00b34578a61e0673e1af8b.jpg)
The Specs
Type of vehicle Rear-wheel-drive, luxury 4-door sedan
Engine 3.5L DOHC V6
Power 377 hp; 341 lb.-ft. of torque
Transmission 7-speed dual clutch manumatic
Brakes 4-wheel disc with ABS
Tires 245/40R19
Price (base/as tested) $69,900/$69,900
Destination charge $1,995
Natural Resources Canada fuel economy (L/100 km) 8.0 city, 7.5 highway
Standard features Power door locks, windows and mirrors, tri-zone climate control air conditioning, Krell ultra-premium14-speaker audio system with CD/AM/FM/XM/MP3/WMA, Sirius satellite radio, Acura navigation system with voice recognition, AcuraLinks infotainment system, 11-volt power outlet, rear back-up camera, tilt and telescoping steering wheel, heated and cooled front seats, leather seats, 12-way power adjustable front seats, power moonroof, adaptive cruise control, auto headlights, dual front air bags, dual front side air bags, front and rear side curtain air bag, driver knee air bag, rear back up camera, tire pressure monitoring system, Blind Spot Information system, Lane Keeping Assist system, Stabilitrak vehicle control system, electronic brake force distribution
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#1008
Senior Moderator
Haven't seen a negative article yet about the RLX Sport Hybrid. Despite what some say about its looks, this is a car of note.
I just filled up for the first time yesterday. That tank was 23 mpg--it must have been sitting around a lot with the engine on before I picked it up. So far, the second tank is around 25 mpg. Definitely temp-sensitive; the engine comes on periodically even in EV mode to power the climate control (heat).
I just filled up for the first time yesterday. That tank was 23 mpg--it must have been sitting around a lot with the engine on before I picked it up. So far, the second tank is around 25 mpg. Definitely temp-sensitive; the engine comes on periodically even in EV mode to power the climate control (heat).
#1009
You'll Never Walk Alone
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Join Date: Jun 2005
Location: Vancouver, BC, Canada
Age: 37
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Haven't seen a negative article yet about the RLX Sport Hybrid. Despite what some say about its looks, this is a car of note.
I just filled up for the first time yesterday. That tank was 23 mpg--it must have been sitting around a lot with the engine on before I picked it up. So far, the second tank is around 25 mpg. Definitely temp-sensitive; the engine comes on periodically even in EV mode to power the climate control (heat).
I just filled up for the first time yesterday. That tank was 23 mpg--it must have been sitting around a lot with the engine on before I picked it up. So far, the second tank is around 25 mpg. Definitely temp-sensitive; the engine comes on periodically even in EV mode to power the climate control (heat).
#1010
Safety Car
Thread Starter
![Talking](https://acurazine.com/forums/images/icons/icon10.gif)
The Acura RLX was introduced in 2013 for the 2014 model year and served as a follow-up to the 2nd-generation RL, which at the end of its lifespan was in desperate need of replacement. Like the RL, the RLX has its sights set on the midsize luxury segment, which includes the BMW 5 Series and Mercedes-Benz E-Class. It’s powered by a 3.5-liter V-6 producing 310 horsepower, but unlike most of its German rivals, it puts it power down through the front wheels — a potential turn-off for some buyers. Fortunately, Acura has addressed this shortcoming with the Sport Hybrid SH-AWD.
The RLX Sport Hybrid SH-AWD is Acura’s new flagship, and has the potential to be a game-changer when Acura needs it the most. Acura’s range has been a bit stagnant these past few years. Much of the sporting juju Acura earned with cars like the original NSX, Integra, and RSX has been largely forgotten thanks to years of building extraordinarily average sedans and SUVs that haven’t quite been able to take the fight to rivals from Germany and Japan.
This newfound swagger comes with its innovative new Super Handling all-wheel-drive hybrid drivetrain. Unlike other hybrids in its sector the RLX Sport Hybrid’s electric motors and batteries don’t just improve fuel economy, they also add healthy dose of power and actually improve performance rather than hinder it. More on this later, but for now, we can view the RLX Sport Hybrid as a luxury sedan that previews the next NSX’s drivetrain.
![](http://pictures.topspeed.com/IMG/crop/201409/acura-rlx-sport-hybr-2_600x0w.jpg)
Exterior
Styling is instantly recognizable as an Acura, but the company has put itself in a position where it’s now difficult for even a trained eye to tell an ILX, from a TLX, from an RLX. Acura’s sedans aren’t by any means offensive to look at, but you do get the sense the company is playing it a bit safe. The RLX doesn’t really move the game on all that much from the RL, which had already overstayed its welcome by about 3 years. Acura’s cool “Jewel Eye” LED headlamps are easily the RLX’s 3 unique and eye-catching exterior feature.
Size-wise, the RLX falls comfortably into the midsize luxury class also occupied by the BMW 5 Series, Mercedes Mercedes -Benz E-Class, and Lexus Lexus GS. At 196.1 inches in length it’s about 3 inches longer than the BMW BMW 5 Series, but its wheelbase is nearly 5 inches shorter at 112.2. Its body utilizes both steel and aluminum body panels, which Acura says keeps weight to a minimum and aids handling, braking, acceleration and fuel economy.
Exterior Dimensions
Headroom (front/rear) 37.6 in (954 mm) / 36.9 in (937 mm)
Legroom (front/rear) 42.3 in (1074 mm) / 38.8 in (985 mm)
Shoulder Room (front/rear) 59.6 in (1514 mm) / 57.0 in (1449 mm)
Hiproom (front/rear) 55.9 in (1419 mm) /54.5 in (1385 mm)
EPA Passenger Volume 102.1 cu ft
Wheelbase 112.2 in (2850 mm)
Length 196.1 in (4982 mm)
Height 57.7 in (1466 mm)
Width 74.4 in (1890 mm)
Track (front/rear) 64.3 in (1632 mm) / 64.2 in (1630 mm)
Ground Clearance (unladen) 4.5 in (115 mm)
InteriorHeadroom (front/rear) 37.6 in (954 mm) / 36.9 in (937 mm)
Legroom (front/rear) 42.3 in (1074 mm) / 38.8 in (985 mm)
Shoulder Room (front/rear) 59.6 in (1514 mm) / 57.0 in (1449 mm)
Hiproom (front/rear) 55.9 in (1419 mm) /54.5 in (1385 mm)
EPA Passenger Volume 102.1 cu ft
Wheelbase 112.2 in (2850 mm)
Length 196.1 in (4982 mm)
Height 57.7 in (1466 mm)
Width 74.4 in (1890 mm)
Track (front/rear) 64.3 in (1632 mm) / 64.2 in (1630 mm)
Ground Clearance (unladen) 4.5 in (115 mm)
The interior is relatively familiar Acura fare. Surfaces appear high-quality, but there’s not much in the way of interior customization. Weirdly, the Technology Package interior is available in both ebony and graystone leather, while the Advance Package is only available in ebony. Both are trimmed with dark mahogany-like accents, and controls appear ergonomic and well positioned.
The infotainment and sat-nav screens are stacked on top of 1 another and are both suitably large. Bluetooth, hands free phone, blind spot detection, phonebook, acoustic glass, and music app compatibility are also standard.
![](http://pictures.topspeed.com/IMG/crop/201409/acura-rlx-sport-hybr-35_600x0w.jpg)
Drivetrain
Underneath the RLX Sport Hybrid’s staid styling lies its real party trick. The market is flooded with luxury hybrids, but none utilize their electric motors the way the RLX Sport Hybrid does. The drivetrain consists of a 310 horsepower, 3.5-liter, i-VTEC V6 and 3 electric motors: 1 up front mounted inside in the 7-speed dual-clutch gearbox and 2 at each of the rear wheels. There are no rear drive shafts or rear differential; all power to the rear wheels is generated exclusively by the 2 36-horsepower electric motors.
Here’s where things get interesting. Both rear motors distribute both positive torque for propulsion and negative torque under regenerative braking to harvest and store energy as electricity, and they’re able to do this completely independent of 1 another. This torque vectoring allows from some intriguing possibilities. In certain scenarios, the RLX Sport Hybrid is capable of applying 100 percent of its torque to the outside wheel while cornering, and negative torque to the inside rear wheel. It’s a revelation in terms of handling and does a great job of mitigating understeer. It also cleverly disguises the RLX Sport Hybrid’s substantial weight penalty over the non-hybrid RLX, though the hybrid does boast improved weight distribution.
Between the internal combustion engine and the 3 electric motors, the RLX Sport Hybrid produces a formidable 377 horsepower and 341 pound-feet of torque. The 0-to-60 sprint takes an impressive 5 seconds flat, all while returning 32 mpg on the highway and 28 in the city.
Drivetrain/Specifications
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Engine RLX Sport Hybrid
Engine Type Aluminum-alloy direct injection V-6
Displacement (liters) 3.5
Horsepower @ rpm (SAE net) 310 @ 6500
Torque (lb-ft @ rpm) (SAE net) 273 @ 4700
Valvetrain 24-valve, SOHC i-VTEC®
Variable Cylinder Management™ (VCM®) •
Compression Ratio 11.5:1
Throttle Control Drive-by-Wire throttle system
CARB Emissions Rating LEV 3 SULEV 30
Tune-Up Interval 100k +/- miles no scheduled tune-ups
3-MOTOR SYSTEM RLX Sport Hybrid
Motor Type Permanent Magnet
Front Motor Horsepower (kW) @ rpm 47 (35) @ 3000
Front Motor Torque lb.-ft. (Nm) @ rpm) 109 (148) @ 500-2000
Dual Rear Motors Horsepower (kW) @ rpm 36 + 36 (27 + 27) @ 4000
Dual Rear Motors Torque lb.-ft. (Nm) @ rpm) 54 + 54 (73 + 73) @ 0-2000
System Combined Horsepower 377
System Combined Torque (lb-ft) 341
BATTERY RLX Sport Hybrid
Battery Type Lithium-Ion (Li-Ion)
Capacity 1.3 kWh
Voltage 260V
![](http://pictures.topspeed.com/IMG/crop/201409/acura-rlx-sport-hybr-26_600x0w.jpg)
Prices
The RLX Sport Hybrid SH-AWD starts at $59,950 and comes in 2 trim levels. The base Technology Package comes standard with an electronic gear selector, a heads-up display, heated seats and a reactive-force accelerator pedal (which applies reactive force to help the driver apply power as efficiently as possible). Adding another $6,000 will get you the Advance Package, which adds collision detection, lane assist, adaptive cruise control, Krell premium audio system, heated rear seats and rear footwell lighting.
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Model Price Fuel Economy
RLX Sport Hybrid SH-AWD with Technology Package $59,950 28/32/30
RLX Sport Hybrid SH-AWD with Advance Package $65,950 28/32/30
BMW ActiveHybrid 5
The Acura out-muscles the similarly priced BMW ActiveHybrid 5 by some margin, but it can’t match the BMW i BMW i n terms of customization. The ActiveHybrid 5 offers more interior color options, as well as some nifty optional M Sport bodywork.
At 5.9 seconds, the ActiveHybrid 5 is nearly a second off the Acura’s 0-to-60 time, but what it lacks in straight-line performance, it makes up in fuel economy, getting 40 mpg on the highway to the Acura’s 32 mpg. It’s powered by BMW’s 3.0-liter straight 6, and is augmented by a pair of turbochargers and a single electric motor. In total, it produces 340 horsepower and is capable of driving up to 2.5 miles on electric power alone. The BMW also has an 8-speed transmission to the Acura’s 7, but at that point, who’s counting?
With an asking price of $61,845, it’s somewhere between the RLX Sport Hybrid’s 2 price points, but the BMW has the superior interior, which is hard to pass up.
Mercedes-Benz E400 Hybrid
At $56,700 the Mercedes-Benz E400 Hybrid is appreciably less expensive than both the Acura and the BMW, and, like the BMW, it’s infinitely more customizable both inside and out.
It’s powered by a normally aspirated, 3.5-liter V-6 and a single electric motor producing a combined 329 horsepower. At 30 mpg on the highway, it’s lagging a bit behind the Acura at 32 mpg, and way behind the BMW at 40 mpg. Unlike many hybrids, it actually gets worse mileage under city driving conditions — 24 mpg to the BMW’s 44 and the Acura’s 28 in the city.
Overall, I am a big fan of the styling of the current E-Class. The new 1-piece LED headlamps and horizontal taillights give it a thoroughly modern appearance, but it’s also instantly recognizable as a Mercedes.
Lexus GS 450h
Lexus offers 2 different versions of its GS hybrid starting at $60,430, the base GS 450h and the GS 450 Hybrid F Sport, but, other than some visual and suspension upgrades for the F Sport, there’s no discernible difference in performance or efficiency between the 2.
We really liked the GS 450h when we drove it last month, but, on paper at least, the RLX Sport Hybrid has it beat. With 34 mpg on the highway, the GS has a slight edge in terms of fuel economy, but is over half-a-second slower to 60 mph. But we like that it’s a relatively powerful (338 horsepower) rear-wheel-drive luxury sedan that’s fun to drive. Go for the optional sport suspension too. It’s rather good.
We weren’t fans of the cheap-looking interior wood trim, but the GS hybrid does come with plenty of well-appointed standard features. We also felt the drivetrain would have been better served with a traditional automatic or dual clutch transmission rather than Lexus’ CVT.
![](http://pictures.topspeed.com/IMG/crop/201409/acura-rlx-sport-hybr-4_600x0w.jpg)
Conclusion
It will be interesting to see if the Sport Hybrid SH-AWD drivetrain gets applied to other platforms in Acura’s, or even Honda Honda ’s, range. We already know a similar system will power the forthcoming NSX, which will feature the same torque-vectoring tricks. It would also seem to make sense on Acura’s soft-roaders, the RDX and MDX.
The RLX Sport Hybrid applies this new technology well, but we’d like to see some sporty visual queues to help differentiate it from the base RLX. As it is, trying to pick out differences between the 2 is like playing a really, really hard version of 1 of those touch-screen spot the difference game. Given the changes under the skin and sporty pretenses, we’d like to see something a bit meaner looking.
Looks and options aside, parent company Honda changed engine technology forever with innovations like VTEC and CVCC. Let’s see if it can make history again with its trick new all-wheel-drive hybrid drivetrain. The RLX Sport Hybrid is just the first step.
LOVE IT
Trick drivetrain brings hybrid hypercar tech to the masses.
LED headlamps look properly futuristic.
Gobs more power that comparably priced hybrids.
LEAVE IT
Not the most interesting thing to look at.
Chunky, but able to hide its weight well.
Limited interior color and trim options.
Trick drivetrain brings hybrid hypercar tech to the masses.
LED headlamps look properly futuristic.
Gobs more power that comparably priced hybrids.
LEAVE IT
Not the most interesting thing to look at.
Chunky, but able to hide its weight well.
Limited interior color and trim options.
The following 2 users liked this post by TSX69:
a35tl (11-14-2014),
George Knighton (11-13-2014)
#1011
Grandpa
Join Date: Dec 2003
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Decent couple of reviews. Insightful but practical.
#1012
Grandpa
Join Date: Dec 2003
Location: Virginia, Besieged
Age: 68
Posts: 7,596
Received 2,609 Likes
on
1,475 Posts
Okay, one guy says 5.0 flat to 60 on a production version.
What I wonder is if he had the foresight to put it in first gear. :-)
What I wonder is if he had the foresight to put it in first gear. :-)
#1013
Combination of information and review. This particular article does provide some insight on the differences between the Hybrid and the FWD RLX. Quite useful and well written. From Netcarshow website.
Acura RLX Sport Hybrid
In early 2013, Acura introduced the 310-horsepower RLX luxury-performance sedan with a new 3.5-liter all-aluminum, direct-injected VTEC V-6 engine, a number of signature Acura technologies and Precision All-Wheel Steer™ (P-AWS™), creating a new value proposition with superior cabin space and outstanding driving performance in Acura's flagship sedan. Acura is again raising the bar with the introduction of the Acura RLX Sport Hybrid SH-AWD™, the most powerful and technologically advanced Acura sedan yet and the first to apply Acura's groundbreaking new three-motor Sport Hybrid system with electric SH-AWD (Sport Hybrid SH-AWD).
With a direct-injected V-6 engine and an all-new 7-speed dual-clutch transmission (DCT) with built-in motor-generator powering the front wheels, and two rear electric motors powering the rear wheels, the 377-horsepower RLX combines V8-like performance and 4-cylinder-like fuel efficiency along with exhilarating "on the rails" handling performance, courtesy of its electrically-powered torque-vectoring all-wheel drive system.
The Acura RLX Sport Hybrid further elevates Acura's commitment to create "the synergy between man and machine" -vehicles that truly respond to the will of the driver - and deliver new levels of technology-enhanced performance, comfort and convenience. Like the RLX with P-AWS™, the RLX Sport Hybrid delivers class-leading interior space and comfort and a host of signature Acura technologies, including Jewel Eye™ LED headlights, Lane Keeping Assist, Adaptive Cruise Control with Low-Speed Follow, and the next generation AcuraLink® connected car system. In addition, the RLX Sport Hybrid applies new Acura technologies including:
2014 Acura RLX Sport Hybrid
Using smart packaging, advanced aerodynamic design and lightweight body construction, along with fuel-saving hybrid powertrain technology, the RLX Sport Hybrid has the most spacious five-passenger seating in its class along with a top-class EPA fuel-economy rating of 28/32/30 mpg (city/highway/combined).
With a longer wheelbase and wider greenhouse than competing mid-luxury sedans, the new Acura RLX Sport Hybrid SH-AWD delivers full-size interior space in a nimbler, mid-size luxury sedan package. The RLX boasts the longest rear-seat legroom (38.8 inches), and best front (59.6 inches) and rear (57.0 inches) shoulder room in the mid-luxury class. The RLX advanced body design makes extensive use of high-strength steel and aluminum, further aiding its outstanding fuel efficiency, straight-line performance, and superior handling agility.
The new RLX Sport Hybrid SH-AWD offers an incredible array of advanced safety, driver-assistive and information and media technologies, including the standard next-generation AcuraLink™ connected car system and Multi-Angle Rearview Camera; along with available Lane Keeping Assist System (LKAS), Adaptive Cruise Control with Low-Speed Follow and Blind Spot Information (BSI) system. Safety systems available on the RLX Sport Hybrid include technologies such as Collision Mitigation Brake System (CMBS), Forward Collision Warning (FCW) and Lane Departure Warning (LDW).
Utilizing Acura's next-generation Advanced Compatibility Engineering™ (ACE™) body structure, along with seven airbags (including a driver's knee airbag), the RLX Sport Hybrid SH-AWD is anticipated to earn top-level safety ratings, including a 5-star NCAP Overall Vehicle Score and an IIHS "TOP SAFETY PICK+" rating, including a GOOD rating in the IIHS small overlap front crash test.
The RLX Sport Hybrid also offers intuitive technology that reduces stress and simplifies the driving and ownership experience - with features such as Electronic Parking Brake with Automatic Brake Hold, a capless refueling system, Smart Entry/Smart Start keyless access system, easy-to-use and customize dual touch screens, "tensionless" e-pretension front seatbelts, and available rain-sensing windshield wipers, among others.
THE SYNERGY BETWEEN MAN AND MACHINE
As the foundation of Acura's product direction, the Synergy Between Man and Machine is the intelligent pairing of useful technologies and luxury features with the idea of creating vehicles that truly respond to the will of the driver. The focus is not on one specific technology, but on the driving experience Acura vehicles provide to the customer. From its sophisticated exterior and interior design, to its balance of performance, low emission and the top-class fuel economy ratings, and advanced and intuitive technology, the RLX Sport Hybrid is designed to exceed the expectations of Acura clients.
MARKET POSITIONING
The Acura RLX Sport Hybrid SH-AWD enters the mid-luxury segment competing against hybrid and/or all-wheel-drive versions of Audi A6, BMW 5-Series, Infiniti Q50, Lexus GS, and Mercedes-Benz E-Class. The RLX is equipped to meet these established competitors, thanks to improvements in virtually every area of its design, performance, technology, luxury and safety features.
POWERTRAIN
The 2014 RLX Sport Hybrid's all-new three-motor hybrid powertrain combines the power of a conventional V-8 engine with 4-cylinder-like fuel efficiency and the performance-enhancing capabilities of torque-vectoring all-wheel drive.
The RLX Sport Hybrid shares it basic engine architecture with the two-wheel-drive RLX with P-AWS. The 3.5-liter, 310-horsepower, 24-valve direct-injected SOHC V-6 engine with i-VTEC® and VCM™ adds an idle-stop feature to further maximize fuel efficiency, and revised cam timing to smooth engine restart after idle stop. Peak torque to the front wheels is rated at 273 lb.-ft. at 4,700 rpm (versus 272 lb.-ft. at 4,500 rpm in the RLX with P-AWS).
An all-new advanced 7-speed dual-clutch transmission (DCT) is standard on the Sport Hybrid—a first for Acura. Unlike a conventional automatic transmission, the DCT offers ultra-quick gear changes and eliminates the need for a torque converter, which significantly improves efficiency. It can operate in fully automatic mode, or can be shifted manually via steering wheel-mounted paddle shifters.
The RLX Sport Hybrid SH-AWD uses three electric motors: a single 35-kilowatt (47 hp) motor that is integrated with the 7-speed Dual Clutch Transmission supplements the V-6 engine in driving the front wheels, and a rear-mounted Twin Motor Unit (TMU) containing two 27-kilowatt (36 hp) motors that dynamically distribute electric-motor torque to the rear wheels. Both the front and rear motors capture kinetic energy during vehicle deceleration and braking and convert it to electricity to supply the Intelligent Power Unit's 72-cell, 1.3-kWh lithium-ion battery pack, located behind the rear seatback. Together, the 310-horsepower V-6 engine and three electric motors produce a total system output of 377 horsepower and 377 lb.-ft. of torque—the most ever in a production Acura.
The front motor is integrated with the 7-speed DCT and is connected to the driveshaft via a clutch. The motor accomplishes three tasks: (1) It supplements the V-6 engine in driving the front wheels when additional power is required, such as in a passing situation; (2) provides regenerative braking to the front wheels; (3) converts engine power to electricity to supplement regenerative braking in recharging the lithium-ion batteries.
Acura's mechanically-based Super Handling All-Wheel Drive (SH-AWD) made its debut on the RL luxury sedan in 2005, and has since been used on a range of Acura models in several iterations. In the RLX Sport Hybrid, SH-AWD operates independent of the gasoline engine. Drawing power from the lithium-ion battery pack, the Twin Motor Unit's two electric motors deliver torque directly to the rear wheels, thereby eliminating the weight and energy losses associated with a conventional driveshaft and differential mechanism.
When cornering, the RLX Sport Hybrid delivers more torque to the outside rear wheel, much like mechanical SH-AWD, but with more available torque at low engine speeds. Sport Hybrid SH-AWD can also simultaneously apply brake torque to the inside rear wheel during cornering to further enhance cornering control. In addition, since it doesn't rely on engine torque, electric SH-AWD can create a larger torque difference between the left and right rear wheels, even during small throttle applications, at low engine speeds or even during deceleration (such as when lifting throttle mid-corner). This substantially magnifies the positive handling benefits of SH-AWD across a much wider range of driving conditions.
Engine Architecture
The RLX Sport Hybrid 3.5-liter VTEC® V-6 has a smooth-firing 60-degree V-angle and compact overall dimensions. The V-6 has a die-cast lightweight aluminum alloy block with cast-in-place iron cylinder liners. The first ever application of direct injection in an Acura vehicle combines with i-VTEC and Variable Cylinder Management (VCM) to give the RLX a potent blend of power and fuel efficiency.
The aluminum-alloy 24-valve engine produces 310 horsepower at 6,500 and generates 273 lb.-ft. of torque at 4,700 rpm. Torque is markedly improved vs. RL in the lower ranges, where the engine typically operates. Along with the increased horsepower, the updated V-6 also contributes to increased fuel efficiency, due in part to internal friction reduction features, including an oil-ring ion-plating treatment, and plateau honing. A new tumble-type intake port design improves combustion efficiency.
Engine Block and Crankshaft
With its 60-degree V-angle, the V-6 engine is inherently smooth and has compact overall dimensions that allow efficient packaging within the vehicle. The V-6 has a die-cast lightweight aluminum alloy block with cast-in-place iron cylinder liners. Made with a centrifugal spin-casting process, the thin-wall liners are high in strength and low in porosity. The block incorporates a deep-skirt design with four bolts per bearing cap for rigid crankshaft support and minimized noise and vibration. The 3.5L V-6 uses a high-strength steel crankshaft for minimum weight.
A new cooling control spacer positioned in the water jacket surrounding the cylinders helps to maintain consistent operating temperature. Plateau honing of the cylinder lining further lowers the friction level between the pistons and the cylinders by creating an ultra-smooth surface. This two-stage machining process uses two grinding processes instead of the more conventional single honing process. Plateau honing also enhances the long-term wear characteristics of the engine.
Pistons/Connecting Rods
Designed with special "cavity-shaped" crowns, the pistons help maintain stable combustion and contribute to stratified-charge combustion. Ion-plated piston rings help reduce friction for greater operating efficiency. The compression ratio is 11.5:1. Heavy-duty steel connecting rods are forged in one piece and then the crankshaft connecting rods are "crack separated" to create a lighter and stronger rod with an optimally fitted bearing cap.
Cylinder Heads/ Valvetrain
Like other Acura V-6 powerplants, the RLX Sport Hybrid engine's 4-valve cylinder heads are a single-overhead-camshaft design, with the cams driven by the crankshaft via an automatically tensioned toothed belt. Made of low-pressure cast, low-porosity aluminum, each cylinder head incorporates a new "tumble port" design that improves combustion efficiency by creating a more homogeneous fuel-air mixture. An integrated exhaust manifold cast into each cylinder head reduces parts count, saves weight, improves flow and optimizes the location of the close-coupled catalyst.
i-VTEC Valve Control System
The RLX Sport Hybrid V-6 engine combines Variable Cylinder Management (VCM) with Variable Valve Timing and Lift Electronic Control (VTEC), which changes the lift profile, timing and lift duration of the intake valves. A switching mechanism allows each cylinder to operate with low-rpm valve lift and duration or high-rpm lift and duration. The rear cylinder bank's valve gear can also leave all intake and exhaust valves closed to maximize fuel efficiency during cylinder deactivation.
The "intelligent" portion of the system is its ability to vary valve operation based on the driving situation and engine rpm. At low rpm, the VTEC intake valve timing and lift are optimized (low lift, short duration) for increased torque, which allows a wide range of 3-cylinder operation. As engine rpm builds past 5,000 rpm, the VTEC system transitions to a high-lift, long-duration intake cam profile for superior high-rpm engine power.
Variable Cylinder Management ™ (VCM™)
The RLX Sport Hybrid engine employs Acura's Variable Cylinder Management (VCM) cylinder deactivation technology. The VTEC system combines with Active Control engine Mounts (ACM) to allow the VCM system to operate with three cylinders in a wide range of situations to maximize fuel efficiency and lower emissions. When greater power is needed, the system switches seamlessly to 6-cylinder operation. With the strong power output of the Direct Injection RLX engine, a 4-cylinder operating mode is not needed.
During startup, aggressive acceleration, or when climbing hills - any time high power output is required - the engine operates on all six cylinders. During moderate-speed cruising and at low or moderate engine loads, the system operates just the front bank of three cylinders.
The VCM system can tailor the working displacement of the engine to match the driving requirements from moment to moment. Since the system automatically closes both the intake and exhaust valves of the cylinders that are not used, pumping losses associated with intake and exhaust are eliminated and fuel efficiency gets a further boost. The system combines maximum performance and maximum fuel efficiency - two characteristics that don't typically coexist in conventional engines.
VCM deactivates specific cylinders by using the i-VTEC (intelligent Variable Valve-Timing and Lift Electronic Control) system to close the intake and exhaust valves while the Power Control Module (PCM) simultaneously cuts fuel to those cylinders. The spark plugs continue to fire in inactive cylinders to minimize plug temperature loss and prevent fouling induced from incomplete combustion during cylinder re-activation.
The system is electronically controlled, and uses special integrated spool valves in the cylinder heads. Based on commands from the system's electronic control unit, the spool valves selectively direct oil pressure to the rocker arms for specific cylinders. This oil pressure in turn drives synchronizing pistons that connect and disconnect the rocker arms.
The VCM system monitors throttle position, vehicle speed, engine speed, automatic-transmission gear selection and other factors to determine the correct cylinder activation scheme for the operating conditions. In addition, the system determines whether engine oil pressure is suitable for VCM switching and whether catalytic-converter temperature will remain in the proper range. Importantly, the drive by wire control is able to finely match torques in 6-cylinder and 3-cylinder combustion modes, making the transition between the two virtually unnoticeable.
Direct Injection System
Conventional engines using multi-port fuel injection mix fuel and air before they enter the combustion chamber. With direct injection, fuel is injected directly into each combustion chamber. This allows for better combustion and overall efficiency.
The RLX V-6 engine is the first application of direct injection for an Acura vehicle in the United States. The system features a compact, high-pressure, direct-injection pump that allows both high fuel flow and pulsation suppression, while variable pressure control optimizes injector operation. A multi-hole injector delivers fuel directly into each cylinder (not to the intake port, as in conventional port fuel injection designs).
The multi-hole injectors can create the ideal stoichiometric fuel/air mixture in the cylinders for good emissions control. Theoretically, a stoichiometric mixture has just enough air to completely burn the available fuel.
Based on the operating conditions, the direct-injection system alters its function for best performance. Upon cold engine startup, fuel is injected into the cylinders on the compression stroke. This creates a weak stratified charge effect that improves engine start-up and reduces exhaust emissions before normal operating temperature is reached.
Once the engine is fully warm for maximum power and fuel efficiency, fuel is injected during the intake stroke. This helps create a more homogeneous fuel/air mix in the cylinder that is aided by the high-tumble intake port design. This improves volumetric efficiency, and the cooling effect of the incoming fuel improves anti-knock performance.
Active Control Engine Mounts and Active Sound Control
A new, more powerful 28-volt Active Control Engine Mount system (ACM) is used to minimize the effects of engine vibration as the VCM system switches cylinders on and off. The 28-volt ACM is a key factor in the VCM's broad range of operation in the new RLX. Sensors alert the Electronic Control Unit (ECU) to direct ACM actuators positioned at the front and rear of the engine to cancel engine vibration. In the cabin of the RLX, an Active Sound Control system further reduces low frequency sound relating to the function of the VCM system.
Vibration Reduction Technology
Since the RLX Sport Hybrid's gasoline engine can be shut down during certain driving conditions (idle stop), it incorporates measures to mitigate engine vibration during restarts. Compared to the two-wheel-drive RLX, the RLX Sport Hybrid has unique intake cam profiles that close the intake valves later, effectively lowering the compression ratio at startup to reduce vibration. To further reduce vibration, the electrically actuated hydraulic Active Control Mounts are synchronized with engine start-up. A dual-mass flywheel helps further reduce engine vibration when the gasoline engine is in operation.
Drive-by-Wire Throttle System
The RLX doesn't use a conventional throttle cable, but instead has smart electronics that "connect" the throttle pedal to a throttle valve inside the throttle-body. The result is less underhood clutter and lower weight, as well as quicker and more accurate throttle actuation. Plus, specially programmed "gain" between the throttle pedal and engine offers improved drivability and optimized engine response to suit specific driving conditions.
Acura's Drive-by-Wire throttle system establishes the current driving conditions by monitoring throttle pedal position, throttle valve position, engine rpm and road speed. This information is used to define the throttle control sensitivity that gives the RLX's throttle pedal a predictable and responsive feel that meets driver expectations. There are two different throttle profiles available in the RLX. When the transmission is in "D" (Drive) the drive-by-wire system uses the normal profile. When the Sport mode is engaged by pressing the Sport button located near the shift lever, the system changes the throttle map to enhance response feel.
Direct Ignition and Detonation/Knock Control
The RLX's Power Control Module (PCM) monitors engine functions to determine the best ignition spark timing. An engine block-mounted acoustic detonation/knock sensor "listens" to the engine, and based on this input, the PCM can retard the ignition timing to prevent potentially damaging detonation. The 3.5L V-6 has an ignition coil unit for each cylinder that is positioned above each spark plug's access bore.
Close-Coupled Catalysts and Variable Flow Exhaust System
The exhaust manifolds of the 3.5L V-6 are cast directly into the aluminum cylinder heads to reduce weight, decrease parts count, and create more underhood space. The result of this casting design is that the two primary catalytic converters are positioned much closer to the combustion chambers. High-efficiency next-generation precious metal catalytic converters are mounted directly to the exhaust port of each cylinder head to enable extremely rapid converter "light-off" after the engine starts. A significant weight savings is realized by eliminating traditional exhaust manifolds.
Downstream of the close-coupled catalytic converters, a hydroformed 2-into-1 collector pipe carries exhaust gases to a secondary catalytic converter located under the passenger cabin floorboard. This high-flow secondary catalytic converter has a large inlet and outlet to enhance exhaust flow. To balance the engine's need for quiet operation at low rpm and higher flow at high rpm, the RLX's dual exhaust system incorporates a variable flow rate feature. Pressure-operated exhaust valves in each silencer are closed in normal operation, reducing exhaust noise by as much as 8 dB. When the driver demands more performance from the RLX, rising exhaust gas pressure opens both valves. The additional exhaust flow ads five horsepower to the engine's peak output.
Emissions Control
The 2014 Acura RLX Sport Hybrid utilizes a higher amount of precious metals in its under-floor catalyst to meet CARB LEV III SULEV 30 emissions standards.
A number of advanced technologies are factors in the emissions performance. The unique cylinder head-mounted close-coupled catalytic converters light off more quickly after engine start up, and a 32-bit RISC microprocessor within the powertrain control module (PCM) boosts computing power to improve the precision of spark and fuel delivery.
The RLX's V-6 engine features Programmed Fuel Injection (PGM-FI) that continually adjusts the fuel delivery to yield the best combination of power, low fuel consumption and low emissions. Multiple sensors constantly monitor critical engine operating parameters such as intake air temperature, ambient air pressure, throttle position, intake airflow volume, intake manifold pressure, coolant temperature, exhaust-to-air ratios, as well as the position of the crankshaft and the camshafts.
To further improve emissions compliance, the 3.5L V-6 makes use of an after-cat design exhaust gas recirculation (EGR) system that allows cleaner, cooler EGR gas to be fed back into the intake system. An EGR system, especially one that delivers a cleaner/cooler charge, reduces pumping loss for better fuel efficiency.
One-Touch Start System
To ensure consistent starting, the RLX has a one-touch start system that maintains starter engagement until the engine starts. Should the driver release the Start button before the engine starts, the system will start the vehicle. Simply push the Start button (with the fob in the vehicle) and the engine will automatically start up.
Noise & Vibration Control
With its 60-degree V-angle and compact, rigid and lightweight die-cast aluminum cylinder block assembly, the 3.5L V-6 powerplant is exceptionally smooth during operation. Other factors that help reduce engine noise and vibration are a rigid forged-steel crankshaft, die-cast accessory mounts, and a stiff cast-aluminum oil pan that reduces cylinder block flex.
Idle Stop Feature
Idle stop stops cylinder combustion and cylinder activation, eliminating fuel use when the vehicle is stopped, such as at traffic light or in heavy traffic conditions. The engine is restarted by the 35-kilowatt front motor-generator using energy from the lithium ion hybrid battery pack. Unlike some competing systems, the engine restart is extremely smooth and refined, practically undetectable to the vehicle's occupants.
7-Speed Dual-Clutch Transmission (DCT)
To maximize performance and fuel efficiency, the RLX Sport Hybrid has a standard 7-Speed Dual-Clutch Transmission (DCT). In the 7-speed DCT, one clutch controls the odd gears while the other clutch controls the even gears. This arrangement allows gear changes with a much smaller interruption in power to the wheels, resulting in millisecond-quick shifts. Compared to a conventional manual transmission, the operation of the clutches and shifting mechanisms are electronically controlled, eliminating the need for a clutch pedal or shift lever. Compared to a conventional automatic, the torque converter and its mechanical inefficiencies are also eliminated. The DCT transmission in the RLX Sport Hybrid also features a 17-percent wider ratio range than the 6-speed automatic transmission in the RLX with P-AWS.
Electronic Gear Selector
In the RLX Sport Hybrid, a conventional console-mounted shift lever is replaced with an all-new Electronic Gear Selector fully electronic, shift-by-wire gear selector. Park, Neutral and Drive are selected with the push of a button. Reverse is selected by pulling back a dedicated switch. Indicator lights near the buttons indicate the mode selected. As an added safety feature, if the vehicle is brought to a stop in Drive, the system will automatically select Park if the driver's seatbelt is unbuckled and the driver's door is opened.
Transmission Modes
When in Drive mode, the 7-speed dual-clutch transmission can be controlled steering wheel-mounted paddle shifters. While traveling up or down hills, Grade Logic Control alters the transmission's shift schedule to reduce shift frequency and improve speed control. A shift map in the transmission computer continually measures throttle position, vehicle speed and acceleration/deceleration, and then determines when the vehicle is on a hill. The shift schedule is then adjusted to hold the transmission in lower gears to boost climbing power or to provide engine braking when traveling downhill.
Shift Hold Control keeps the transmission in its current (lower) gear ratio when aggressive driving is detected, as in the case of decelerating at a corner entry. Shift Hold Control leaves the chassis undisturbed by excess shifting and ensures that power will be immediately available (without a downshift) at the corner exit.
The RLX Sport Hybrid features Sport and Normal modes. A selector button located on the center console allows the driver to toggle between the two operating modes. Normal mode is aimed at overall energy efficiency. Sport mode, by contrast, puts greater emphasis on the driving experience, delivering a more responsive and direct feel. Sport mode offers more aggressive and sporty shift mapping, engine rpm "blips" on downshifts, while VCM and idle stop functions are cancelled. All of the transmission logic systems work together to automatically alter shift timing based on driving conditions.
Temporary Manual Operation in "Drive"
Whether in Drive or Sport mode, special transmission logic programming allows the use of the steering-wheel-mounted paddle shifters. When the driver operates the steering wheel-mounted paddle shifters while in Drive, the transmission responds to the driver's shift command and then returns to its normal fully automatic mode if further paddle shift inputs are not made within a given time. This special logic makes it easy for the driver to command a quick downshift without leaving the comfort of Drive mode. When in Sport mode, use of the paddle shifters puts the transmission into full manual mode that remains until another mode of operation is selected.
Manual Mode
By pressing the "Sport" button located near the gear selector button, Sport mode is engaged. This mode offers automatic operation with more aggressive shift mapping. A pull on the racing-inspired paddle shifters (mounted on the steering wheel) places the transmission in fully manual mode. A digital display in the instrument cluster indicates which gear the transmission is in. The system reverts to normal fully automatic mode if further paddle shift inputs are not made within a given time.
Sport Hybrid Super Handling All-Wheel Drive (SH-AWD)
The RLX Sport Hybrid is the first production vehicle to employ an electric version of Super Handling All-Wheel Drive (SH-AWD). Previous mechanical versions of SH-AWD had the ability to vary the amount of power sent to the rear axle, and to also vary rear power distribution between the left and right rear wheels via a longitudinally mounted drive shaft and rear differential with twin electronically controlled clutch packs.
In the RLX Sport Hybrid, the driveshaft and rear differential of a conventional all-wheel drive system is eliminated, replaced by twin 27-kilowatt (36 hp) electric motors that independently drive the left and right rear wheels. Each motor can also capture regenerative braking energy and apply negative (regenerative braking) torque to further enhance cornering capability.
Independent distribution of torque to all four wheels is a key feature of SH-AWD and its ability to enhance both dynamic handling and all-weather traction. When cornering, more positive (drive) torque is applied to the outside rear wheel, while negative (regenerative braking) torque can be applied to the inside rear wheel. This torque differential creates a yaw moment, producing sharper turn-in, more linear cornering, enhanced traceability and improved steering response with reduced understeer tendencies. In addition, since the system doesn't rely on the gasoline engine for torque, electric SH-AWD can create a larger torque difference between the left and right rear wheels, even during small throttle applications, at low engine speeds, or even during deceleration (such as lifting throttle mid-corner). This substantially magnifies the positive handling benefits of SH-AWD across a much wider range of driving conditions.
Power Drive Unit (PDU)
The Power Drive Unit, packaged in the center of the vehicle beneath the center console, dictates the power management strategy of the Sport Hybrid SH-AWD system, including motor power and battery recharge.
Intelligent Power Unit (IPU)
The Intelligent Power Unit is positioned above the Twin Motor Unit, behind the rear seatback. The IPU contains the hybrid system's lithium-ion battery, 12-volt DC/DC converter, junction board, and Electronic Control Units (ECU) for the motors and the battery. The IPU is air-cooled via an integrated fan unit that draws air from inside the vehicle cabin via an intake duct located beneath the rear seats.
1.3-kWh Lithium-Ion Battery
The RLX Sport Hybrid's advanced 72-cell lithium-ion battery has 29 percent greater power density and 5 percent greater energy density compared to the lithium-ion battery in the ILX hybrid.
Front Electric Motor
A single 35-kilowatt (47 hp) electric motor is integrated with the 7-speed DCT. The motor's operating temperature is optimized by a temperature-controlled flow of Automatic Transmission Fluid (ATF) through the motor housing. By tightly controlling the motor temperature, the motor's torque output (both drive and regeneration) can be improved up to 100 percent.
Twin Motor Unit (TMU)
The RLX Sport Hybrid's Twin Motor Unit (TMU) is located in between the rear wheels, where a differential on an all-wheel-drive vehicle is typically mounted. Inside its die-cast aluminum housing are two electric motors positioned back-to-back. Each 27-kilowatt (36-horsepower) motor powers a single rear wheel and can also apply negative torque to the same wheel. A clutch allows each motor to be decoupled from its wheel in certain operating situations to improve efficiency.
Electrically Powered Air Conditioning Compressor
Since the RLX Sport Hybrid engine has an idle-stop feature, it is equipped with an electrically powered air conditioning compressor. This allows continuous air conditioning operation even when the gasoline engine is shut off.
Hybrid System Safety
To maximize passenger safety, the hybrid system components are positioned in well-protected areas of the vehicle. In the event of a collision that triggers the airbags, an automatic high-voltage circuit interrupt in the Intelligent Power Unit cuts power to the hybrid system.
100,000 Mile Tune-up Intervals
The RLX's 3.5L V-6 requires no scheduled maintenance for 100,000+/- miles or more, other than periodic inspections and normal fluid and filter replacements. The first tune-up includes water pump inspection, valve adjustment, replacement of the camshaft timing belt, and the installation of new spark plugs.
Maintenance Minder™ System
To eliminate unnecessary service stops while ensuring that the vehicle is properly maintained, the RLX Sport Hybrid has a Maintenance Minder™ system that continually monitors the vehicle's operating condition. When maintenance is required, the driver is alerted via a message on the Multi-Information Display (MID).
The Maintenance Minder™ system monitors operating conditions such as oil and coolant temperature along with engine speed to determine the proper service intervals. Depending on operating conditions, oil change intervals can be extended to a maximum of 10,000 miles, potentially sparing the owner considerable expenditures and inconvenience over the life of the vehicle. The owner-resettable system monitors all normal service parts and systems, including oil and filter, tire rotation, air-cleaner, automatic transmission fluid, spark plugs, timing belt, coolant and more. To avoid driver distraction while the vehicle is being operated, maintenance alerts are presented on the MID when the ignition is first turned on.
Design Concept
Bristling with technological advances in lighting, aerodynamics and construction, the 2014 RLX Sport Hybrid SH-AWD body has the technology to match its athletic and sophisticated design. Lightweight and aerodynamic, the body provides outstanding collision protection, confidence-inspiring high-speed stability, and exceptional fuel efficiency.
The RLX's dynamic body design combines a sleek overall shape, "aero-fused" cabin silhouette, and close tolerances for the wheel wells and body-panel gaps for a high degree of elegance and aerodynamics. The styling begins with a dynamic front-end featuring the RLX's signature Jewel Eye™ LED headlights, a substantial presence that imparts a look of power and confidence, while also proving highly aerodynamically efficient, providing powerful down the road illumination and even encompassing advanced pedestrian safety features.
Decisive character lines start alongside the hood, sweep over the front wheel arches, and then along the body sides. The body sides feature decisive character lines that subtly rise along the lower body sides, dramatically changing the light reflections and creating an especially dynamic visual signature for the RLX.
This athletic and sophisticated look is complemented by a flowing, aerodynamically sleek cabin design. Referred to by Acura designers as an "aero fused shape," the cabin is wide but also extremely aerodynamic, allowing both a roomy interior and a quiet ride quality as air slips smoothly over the cabin's flush-mounted available acoustic glass and other drag- and turbulence-reducing design details.
The wheel-arch hems use a much smaller gap to the tire than on the RL - and also a much smaller gap than is typical for the segment. This results in a more poised, integrated and finished look for the RLX side profile. The wheel-arch hems are also beautifully finished, adding to the sense of quality. Likewise, the hood, door and trunk-panel gaps are carefully controlled, with the aggregate effect that the RLX is immensely well crafted.
Beneath the vehicle is a sophisticated series of aerodynamic aids that further smooth airflow. These include an engine undercover, left and right floor covers, left and right mid under covers, and a rear under cover.
The rear of the RLX body is also dynamic, and here the cabin is noticeably wider than either of the outgoing RL or the RLX's primary competitors, lending a look of soliditydue to the wider overall body and track widths.
Additional model-exclusive design cues for the RLX Sport Hybrid include a dark chrome-plated grill insert and redesigned lower front bumper fascia with integrated LED fog lights and turn signal indicators. The RLX Sport Hybrid has exclusive 19-inch, 10-spoke alloy wheels and "Hybrid" badging on the front fender. Also, SH-AWD badging replaces the P-AWS badge on the right rear portion of the trunk lid.
Seven different exterior colors, including four metallic and three pearl, are designed to complement the exterior shape and the way light defines it.
The Acura RLX Sport Hybrid utilizes numerous aluminum components to lower the overall vehicle mass by 76 pounds, which helps to improve acceleration, steering and handling response, road-holding, braking performance, fuel efficiency, emissions, and crash safety. Aluminum components include the front and rear bumper beams, front fenders, hood, steering column mounting beam, floor pan, and door skins.
Exterior Dimensions
The 2014 RLX Sport Hybrid is larger than the previous RL model in several key exterior dimensions, including width, wheelbase, and front and rear track. In overall length, the RLX measures 196.1 inches - just 0.2 inches longer than the previous model; however its wheelbase, at 112.2 inches, is a full two inches longer, providing more rear passenger room and improved the ride quality.
At 74.4 inches wide, the RLX is a substantial 1.8 inches wider than the previous model, contributing to the RLX's more spacious interior - now with an impressive 36.4 inches between seating rows - its more confident visual presence, and improved handling stability.
At 57.7 inches high, the RLX is just 0.4 inches taller than the model it replaces.
Among its competitive set, the new RLX is longer and wider than the Audi A6, BMW 5 Series, Lexus GS series, and Mercedes-Benz E-Class.
Waiting Status
When parked and locked, the folding exterior mirrors retract, the security alarm system is armed, and the RLX goes into standby mode, waiting for its owner to return. Then when the driver (in possession of the key fob) approaches the vehicle, it unlocks the driver's door (or all doors if so programmed). When the driver opens the door to be seated, the RLX adjusts the seat and steering column to the preset positions, actives the instrumentation and sets the other features such as climate-control and audio-system presents to match the driver.
Body Rigidity
Static and dynamic rigidity and rear lateral stiffness are all improved versus the RL and even compared to the RL-X with P-AWS. Static bending rigidity is up 53 percent and torsional rigidity is up 47 percent compared to the previous RL model (1 percent up from the RLX with P-AWS). In addition, rear lateral stiffness and the torsional rigidity of the rear upper damper mounting points are up 107 percent and 63 percent, respectively, compared to the previous RL (and up 25 percent and 12 percent when compared to the RLX with P-AWS).
High-Strength Steel
To increase stiffness and rigidity in key areas without increasing weight, 55 percent of the RLX body is made from high-strength steel, including the strategic use of ultra-high strength "hot stamped" 1500Mpa steel.
Aluminum Body Components
Extensive use of aluminum in key areas saves 76.1 pounds compared to traditional all-steel construction, providing high strength with light weight that directly benefits ride, handling, fuel efficiency, emissions reductions and safety. The biggest weight savings from a single component comes from the use of an aluminum hood, which saves 19.6 pounds compared to a steel hood. Aluminum body components include:
The RLX doors are a hybrid construction utilizing aluminum outer panels for lighter weight and steel inner panels for stiffness and crash safety performance. Together, they provide for increased stiffness with a weight reduction of 24.3 pounds compared to all-steel doors.
The front doors are constructed of four parts, while the rear doors are constructed of five parts. The steel inner panel uses a special high-corrosion-protection zinc, aluminum and magnesium plating - 11 percent aluminum, 3 percent magnesium and 86 percent zinc - to assure that electrolytic corrosion does not occur between the two metals. This plating gives the steel inner panel 10 times the resistance of traditional zinc galvanized plating.
The outer aluminum skin and steel inside panels are joined with an Acura-first "curl forming" process for high-strength and durability.
Class-Leading Aerodynamics
More than 800 wind-tunnel tests were conducted to improve vehicle aerodynamics values. As a result, the new RLX will have class-leading lower coefficient of lift (CL) and lower coefficient of drag (Cd).
Sound Insulation
Engineers paid particular attention to reducing interior noise, an effort that extends to literally every aspect of the vehicle's design and engineering - from aerodynamics and powertrain engineering to insulators and the selection of finishing materials - all play a part in the RLX's improved interior quietness.
To achieve a premium level of interior quietness, the RLX receives an unprecedented amount of acoustic material in key areas. The list includes:
Acoustic Door Glass
The RLX Sport Hybrid uses laminated, sound-insulating acoustic glass for all door glass, providing an extra measure of wind and road noise attenuation (same as RLX with P-AWS Technology and higher grades). The glass is 4.7mm thick and includes an acoustic membrane that helps attenuate frequencies above 1,600 Hz, resulting in an improvement of up to 14.7 dB over the previous model's 5mm thick tempered door glass.
Jewel Eye™ Headlights
The 2014 RLX Sport Hybrid features Acura Jewel Eye™ LED headlights, which utilize a dual-stacked array of high-intensity LED lamps to deliver outstanding light distribution, and class-leading distant irradiation performance and light characteristics with a wavelength close to the human eye's luminosity curve. With two rows of five "Jewel Eye" lights per headlight, the LED lights provide improved down the road visibility compared to HID and halogen headlights.
On each side of the RLX, the low beams consist of four LED lights, while the innermost high beams utilize a pair of larger LED lights. The daytime running light (DRL) function is shared by the low-beam lenses, with the eight individual lenses clearly and dramatically visible even in bright sunlight. Altogether, they create a dramatic and distinctive appearance with superior lighting capability.
Light distribution
Both the low and separate high beam LED headlights offer outstanding performance in all nighttime driving conditions, including highway, winding roads, intersections, and in inclement weather conditions. The result is that the driver can see further with uniformity, making high-speed nighttime driving easier and less fatiguing.
A summary of LED benefits include:
LED Taillights
The RLX Sport Hybrid taillights utilize periphery LED illumination that is both effective and highly distinctive. The taillight array consists of two semi-circular LED rings sweeping across the rear fender edges and the sides of the trunk lid. The light path combines functions of both the taillights and the side marker lights in one array. This LED array matches the "Jewel Eye" headlights for elegance and clearly distinguishes the RLX from every other vehicle on the road - even at a distance and especially at night. It also compliments the RLX body design.
LED taillight components include the LED assembly, a housing/reflector and inner and outer lenses. Uniform illumination is provided by a combination of light diffusion and the specially grained finish of both an inner lens and a reflecting surface. Inside the periphery LED taillight array is a separate lighting array consisting of the stoplights and turn signals. Backup lights are located on the trunk lid, inside the perimeter taillight array.
LED Fog Lights
LED fog lights present a smaller face than traditional fog lights, making them less susceptible to damage, while offering longer life, lower energy draw and more desirable color.
One-Touch Turn Signals
The RLX's one-touch turn signals provide increased convenience for the driver when making routine lane changes. With the one-touch turn signal system, a quick movement of the turn-signal lever (between 0.4 sec. and 1 sec.) provides three blinks of the turn signals - an ideal scenario for changing lanes. Holding the lever for 1 sec. or longer (past the "click point") provides continuous blinking, such as for signaling a turn or exiting a thoroughfare.
Retracting Mirrors
At the driver's preference, the RLX's door mirrors on some grades can be configured to automatically retract when the doors are locked, and then automatically extend when the doors are unlocked. This automatic mirror retract/extend function helps safeguard the mirrors when the RLX is parked, while also creating a higher-quality experience for the driver by eliminating the need to remember to manually retract or extend the mirrors.
The mirrors automatically retract or extend in two ways: 1) simply press the lock/unlock button on the remote key fob; or 2) press the lock button on the door handle.
The mirrors can also be retracted and extended by using the mirror switch on the driver's door panel. These functions can be customized through the MID on the instrument panel.
Expanded View Driver's Mirror
The 2014 RLX's Expanded View Driver's Mirror is integrated into the driver's side mirror. Standard equipment on all trim levels, the mirror increases the driver's field of vision by 6.5-degrees to provide a better view of objects that would otherwise be hidden in the vehicle's blind spot. This allows the driver to better recognize vehicles that are in their blind zone.
The major part of the mirror is flat and provides 15.1-degrees of visibility. Adding the 6.5-degrees of the Expanded View Driver's Mirror yields 21.6-degrees of visibility. In addition, the expansion of the view area gradually changes between flat and convex for a more natural user experience.
Intelligent Wipers
Laws in some states require drivers to turn on the headlights when the wipers are operating in the rain. The new RLX helps its driver comply with these laws by automatically illuminating the headlights when the wipers are activated in rainy conditions (with headlight switch in Auto). Operation is shown via an indicator on the instrument panel. If rain is intermittent, the lights stay on for a predetermined interval before automatically turning off again.
Wiper operation is equally advanced for maximum wiping area, better wiping quality, reduced weight, improved appearance and longer blade life. Details include:
The RLX trunk has a self-opening feature that fully opens the trunk lid. There are three ways to open the trunk: 1) by pressing the trunk opener switch located on the driver side door panel, 2) with the key fob and 3) with the trunk opener switch located in the middle of the trunk, underneath the trunk lid garnish. This makes it easier for the RLX driver to carry items and open the trunk lid at the same time. In contrast, the previous RL model, the trunk lid would open halfway compared to the RLX's fully open function. The trunk lid closes manually.
Trunk Storage
The RLX Sport Hybrid offers 12.0 cu.-ft. of trunk storage capacity (down from 15.3 cu. ft. in the RLX with P-AWS and 15.1 cu.-ft. in RLX models with Krell Audio and Advance grades). All measurements include the tool kit and the puncture repair kit. A cargo net allows for storage of smaller items in an areas suspended above the cargo floor. Also, beneath the floor panel is a 0.4 cu.-ft. covered storage well.
Multi-Angle Rearview Camera
The RLX's standard multi-angle rearview camera features three viewing angles - Wide view, Normal view and Top Down view. Drivers may select the preferred view according to driving conditions. The rearview camera system also features dynamic guidelines that display the vehicle's backward trajectory according to steering-wheel position. When the steering wheel is straight, a broad 180-degree rearward view can be seen in Wide View, and Normal and Top Down views are also available. However when the steering wheel is turned 90 degrees, only Wide and Normal views are available, and dynamic guidelines curve onscreen to show the path of the vehicle. The result is improved convenience for the driver as the rearward trajectory of the RLX is indicated by the dynamic guidelines.
Rear Wheel Arch Hem
The RLX's sleek exterior design is enhanced by close tolerances between the tires and the wheel arches. Specially designed wheel-arch hems reduce the gap to just 46 mm between the top of the tire and the lower part of the wheel arch, 10.5-mm narrower than that of the previous RL model. As a result, the tires better fill the wheel wells for a greater sense of unity and substance.
Exterior Colors
The 2014 RLX Sport Hybrid is available in seven exterior colors, including four metallic and three pearl colors. All colors have a strong character, offering expressive contrasts that compliment the RLX's body-panel curves and angles, while also exhibiting a smart luxury appearance. The acid-resistant epoxy clear-coat paint is superior to typical clear-coat paints for increased resistance to urban pollutants.
Chassis Concept
The goal behind the RLX Sport Hybrid chassis was to deliver "the synergy between man and machine" or dynamic handling that truly responds to "the will of the driver." This refers to the way in which Acura engineers envisioned the entire package of the RLX responding instantaneously and precisely, with technology used to improve the driver's capability and confidence. The result is a vehicle that, more than any Acura before it, creates a driving experience that performs at the will of the driver.
Sport Mode
A driver-selectable Sport mode further enhances driving dynamics across a wide range of driving situations. When the driver engages the Sport button on the center console, the system adopts more aggressive shift mapping and rear wheel torque-vectoring control. The system also deactivates Idle Stop, Variable Cylinder Management (no 3-cylinder mode) and the Reactive Force Pedal, plus the Active Sound Control system is modified to provide an even sportier driving experience.
Front Aluminum Subframe
The RLX Sport Hybrid has a lightweight and rigid front aluminum front subframe that is specifically designed to support the high performance of the double wishbone, lower double-joint front suspension with Amplitude Reactive Dampers and belt-type Electric Power Steering (EPS) system. Using die cast front corners, the Acura RLX Sport Hybrid's front subframe is also wider across the middle, features wider middle and rear rails, and a wider rear section vs. RL to accommodate the new EPS system. Rigidity is up 82 percent compared to RL.
With its lightweight and rigidity, the new aluminum front subframe contributes to agile and light handling, straight-line stability, higher fuel efficiency, flat cornering and pleasing ride comfort, and smooth and precise steering feel (with reduced torque steer tendencies).
The RLX Sport Hybrid subframe is matched to the Active Control Engine Mount (ACM) system that is engineered specifically for the RLX's higher-output engine and Variable Cylinder Management (VCM) system.
Lower Double-Joint Front Suspension
The RLX Sport Hybrid utilizes the same double-wishbone, lower double-joint front suspension as the RLX with P-AWS, which significantly improves intuitive handling agility, driver confidence and security, and ride sophistication. The system includes a lower double joint with a split lower control arm, optimized kingpin geometry, upper control arm, hydraulic compliance bushing, special dual-stage Amplitude Reactive Dampers made for Acura by ZF-Sachs, and a stabilizer bar that is heat treated for high strength.
Benefits include:
Like the lower double-joint front suspension, the RLX Sport Hybrid's multi-link rear suspension with Amplitude Reactive Dampers provides optimal handling agility, driver confidence and ride sophistication. The multi-link system geometry is optimized for a flat ride during cornering, confident turning capability, and a sophisticated ride in a variety of urban, highway and open road scenarios. The system includes multi-link control arms, control-arm bushings that are optimized for the best blend of NVH isolation and handling precision, Amplitude Reactive Dampers, and a rear stabilizer bar that is hardened with a special shot-peening process.
Amplitude Reactive Dampers
Amplitude Reactive Dampers provide superior ride comfort and handling in all driving conditions. The dampers have two separate damping mechanisms: one that is tuned for maximum efficiency on smoother roads with small inputs; and the other that is tuned to handle large inputs such as rough roads, potholes, and sudden steering and braking action. The result is a vehicle that remains composed and comfortable in a wide range of driving conditions.
The core technology contained within the Amplitude Reactive Dampers is their two separate damping pistons, including a main piston and a second piston. To improve overall ride comfort, when smaller inputs occur during normal driving conditions, only the main piston works to provide the ideal damping characteristics. To improve the RLX's ride and handling during more severe conditions, the second piston operates to provide additional damping force.
The Amplitude Reactive Dampers are a purely mechanical system that does not require electronic controls. Altogether, they provide a much wider range of damping performance than the previous RL.
High-Output Electric Power Steering (EPS)
The RLX Sport Hybrid Electric Power Steering (EPS) system uses a high-power, belt-type electric steering assist. The system increases the torque available to assist the driver in steering the vehicle smoothly, with instantaneous response, direct feel, and improved low-speed agility and high-speed stability.
The variable gear ratio EPS uses a high-output electric assist motor with a belt-drive system. The system is designed and tuned to provide the two most essential characteristics in a high-performance luxury vehicle's steering. These include a smooth initial response (shorter delay) at the start of steering input, and greater linearity response (steering force camber increase) as input is increased. As a result, the RLX's high-output EPS provides agile performance in low-speed driving maneuvers such as at intersections, improved overall accuracy and road feel, and superb high-speed stability.
Rigid Steering Column
The RLX Sport Hybrid steering column is a highly rigid design with an aluminum bracket and resin angular bearing. The resulting stiffness gives maximum driver steering feedback along with minimizing vibration felt in the wheel.
The steering shaft is significantly larger in diameter than the shaft found in the previous RL, and together with the stiff but lightweight aluminum support bracket and angular bearing, yields maximum vibration-damping characteristics for a more luxurious driving experience.
Electrically actuated tilt and telescoping adjustment makes it easy to set the steering wheel to the ideal position for drivers of different sizes.
4-Wheel Disc Brakes with ABS and Brake Assist
RLX Sport Hybrid is equipped with 4-wheel disc brakes with a 4-channel anti-lock braking system (ABS) for confident stops. The front discs measure 12.99 inches in diameter, while the rear discs measure 12.2 inches in diameter.
ABS independently modulates braking power at each wheel to help the driver retain steering control during heavy braking, while Brake Assist recognizes emergency braking situations and almost instantly applies full braking force when appropriate.
The brake pads are a high-friction type for peak stopping performance even under strenuous conditions. The brake calipers are designed to reduce brake drag when not in use, reducing rolling resistance and improving fuel efficiency in the process.
Electric Servo Brakes
The RLX Sport Hybrid's electric servo brake system maximizes regenerative braking capability for improved fuel efficiency. The braking system is fully hydraulic from the master cylinder all the way to the 4-wheel disc brakes, just like a traditional braking system. The key difference is that the braking function is electronically controlled rather than a purely mechanical activation, allowing regenerative braking from the front and rear electric motors to slow the vehicle, rather than the hydraulic friction brakes, under most circumstances. Besides its payoff in efficiency, the system offers excellent feel and feedback for the driver through the brake pedal.
When the driver applies the brake pedal, a signal is sent to the vehicle's Electronic Control Unit (ECU), which determines the appropriate amount of braking force to assign to regenerative braking through the electric drive motor and to the hydraulic friction braking system. In many cases, friction braking is not needed until the vehicle speed drops below 9 mph, as the vehicle slows to a final stop. When the ECU determines that friction braking is needed, the dual hydraulic master cylinder pumps brake fluid through the system. Midway between the master cylinder and the calipers is a separate motorized electronic actuator. This actuator receives an electronic signal, generated in the master cylinder module that precisely defines how the driver has applied the brakes - soft or hard, slow or fast. The actuator then directly apportions hydraulic pressure to the brake calipers at each wheel.
While the RLX with P-AWS uses a 10-inch vacuum booster to assist the driver in applying needed brake pressure, the RLX Sport Hybrid uses an electric servo brake actuator.
Reactive Force Pedal
The RLX Sport Hybrid is the first model to apply the Acura-developed Reactive Force Pedal technology. In Normal mode, the system measures vehicle speed and dynamically varies pedal force to help the driver in applying the optimal amount of throttle for both spirited performance and good fuel economy. In slippery conditions, the system can also help the driver apply the optimal amount of driving force while minimizing wheel slip, utilizing input from the Vehicle Stability Assist system. Further, in the event that the Collision Mitigation Brake System (CMBS) detects that a frontal collision is imminent, the Reactive Force Pedal will push back on the driver's foot even before the CMBS system activates its visual and auditory alerts.
Electric Parking Brake + Automatic Brake Hold
The combination of Electric Parking Brake (EPB) and Automatic Brake Hold are a first for the Acura division. Together, they meaningfully reduce the effort of driving the vehicle, thereby raising overall comfort to a true flagship level.
Electric Parking Brake
The Electric Parking Brake (EPB) on the RLX Sport Hybrid makes using the parking brake easier and more comfortable. Actuating the parking brake is now as simple as pulling a button on the center console. To release the parking brake, the driver simply presses on the accelerator pedal. In addition to being simpler, more convenient and more comfortable to use than a traditional parking brake, the new Electric Parking Brake makes hill starts easier when the RLX is parked on a grade.
The ease of use also promotes the use of the parking brake. Further, since only a few competitive vehicles have an Electric Parking Brake (EPB) system, its inclusion in the RLX further defines the new Acura as a true flagship. As with a traditional manually activated parking brake, EPB functions on the rear wheels only.
Automatic Brake Hold
The Acura RLX Sport Hybrid also features Automatic Brake Hold, which retains brake pressure when the vehicle is stopped, simplifying driving in heavy traffic or hills. This frees the driver from continually pressing the brake pedal to maintain the vehicle in a stopped position, a significant improvement in driving enjoyment in difficult conditions.
Operating the system requires two simple actions from the driver:
Vehicle Stability Assist™ (VSA®)
The RLX Sport Hybrid's high-efficiency Vehicle Stability Assist™ (VSA) works in conjunction with the ABS and the Drive-by-Wire throttle systems. This premium VSA system enhances vehicle stability when cornering. If vehicle understeer or oversteer is detected, the system selectively reduces power and/or applies braking force to individual wheels to help correct the condition and stabilize the vehicle.
Traction control monitors front-wheel slippage, such as when starting on slick surfaces or patches of ice. If it is detected, traction control activates one or more brake calipers and reduces engine torque to slow the spinning wheel so it can regain traction.
Agile Handling Assist
Agile Handling Assist works in near limit cornering by using the brakes to create a yaw moment, helping the driver smoothly and easily trace the desired line with smaller steering-wheel inputs. The result is improved dynamic performance in all driving conditions, helping the RLX Sport Hybrid perform at the will of the driver.
Tire Pressure Monitoring System (TPMS)
A standard Tire Pressure Monitoring System (TPMS) helps the driver maintain proper air pressure to improve driving safety and fuel efficiency, as well as reduce wear and tear on the vehicle's tires. Located in the instrument panel, a TPMS icon illuminates to alert the driver whenever any of the tires has a significantly low-pressure reading that requires the driver's attention.
Noise-Reducing Wheels
The RLX Sport Hybrid features model-exclusive10-spoke, 19x8J alloy wheels with a painted Glitter Silver Metallic finish. The RLX Sport Hybrid's wheels have a special noise-reducing design that lowers noise by as much as 7 dB in the mid-frequency range. The key elements of the noise-reducing four resin moldings fitted on the inside of the wheel rim. The result is reduced noise resonance in the air column inside the wheel.
All-Season Tires
The RLX Sport Hybrid is shod with 245/40R19 M+S tires. The RLX features an easy-to-use tire repair kit in lieu of a spare tire. This reduces weight and increases trunk volume, and simplifies temporary repairs in the event of a flat tire.
Capless Fueling System
The RLX's capless fueling eliminates the fuel cap, meaning that fueling the vehicle now simply requires opening the fuel-tank lid, refueling, and then closing the lid. This reduces the possibility of damaging the vehicle's paint with the fuel cap or tether, or forgetting the fuel cap at the gas station. The system also allows the use of a smaller fuel-cap door, which cleans up the lines of the vehicle.
The system consists of two integrated components, including an outer shutter mechanism that prevents the intrusion of dirt and dust, and a self-sealing fueling flap that is closed by a torsion spring. Both operate automatically.
At a gas station, the driver simply opens the fuel lid (which automatically locks with the doors) and then inserts the fuel nozzle. Inserting the nozzle automatically opens the outer shutter and fueling flap. When fueling is complete, removing the fuel nozzle automatically closes both the fueling flap and outer shutter.
15.1-Gallon Fuel Capacity
The RLX Sport Hybrid's resin fuel tank capacity of 15.1 gallons gives the RLX an ample cruising range. Both the fuel tank and fuel pipe are made of high-impact resin for lightweight and durability. The fuel tank is located in a protected area in front of the rear suspension.
INTERIOR
The 2014 RLX Sport Hybrid interior serves as a "gracious host" for the driver and passengers, combining highly spacious five-passenger comfort with a higher level of luxury convenience and technology in an Acura flagship sedan. In the front seat area, a design concept called "dual personal structure" divides the space into areas centered on the driver and front passenger, complemented by a wide center stack and console that is easily accessible to each person. High-end premium elements, such as a carefully stitched leather instrument panel cover, soft-touch materials, premium finishes, and rich wood-grain accents, combine with an intuitive new control layout to create a distinctive environment in tune with this luxury performance sedan's sporting character.
Open the door with the standard Smart Entry system and you'll find more shoulder room, front and rear. Rear seat leg room has been increased a substantial 2.5-inches, moving the RLX to the head of its class in tandem seating distance. Heated 12-way adjustable (8-way power plus 4-way power lumbar support) front seats are standard, and offer all-day comfort along with abundant lateral support for aggressive cornering. Ventilated front seats and heated rear seats are standard in the Advance grade. Rich, luxurious perforated and stain-resistant Milano leather seating is also standard.
Standard tri-zone climate control ensures passenger comfort throughout the cabin. All grades have a large center console that offers 5.8 liters of storage space, and features a padded armrest lid that slides fore and aft for greater comfort. The dual-hinged lid can be opened to the left or right, making access simple for either the driver or front-seat passenger. The glove box has a new electric release, and along with the audio, navigation and phone systems, can be easily locked via the touch screen - for situations where additional security is warranted, such as when RLX is given to a valet for parking.
With the expanded range of standard and available technology features, substantial engineering effort was put into making each feature intuitive and easy to use. The focal point of the new instrument panel is a large 8-inch color audio/information screen that provides a range of useful information and access to an array of customizable features. When equipped with a navigation system, a high-resolution screen positioned in this same location combines audio, information and navigation functions.
A 7-inch On-Demand Multi-Use Display™ positioned within easy reach of the driver and front passenger controls the audio system and many other features. The touchscreen eliminates many physical buttons, and is the key contributor to the clean, uncluttered look of the RLX interior. Dynamic menus clearly display controls for each functional mode, reduce screen clutter, and help make operation simple. Audible and touch feedback improves usability and control, and helps keep the driver's eyes on the road. Customizable shortcuts allow the RLX driver to set easy-to-access pre-sets for Places, Phone, Climate, Audio, and Valet functional categories.
Befitting its flagship status in the Acura line, the RLX Sport Hybrid does not scrimp on thoughtful premium details. A power tilt/telescoping steering wheel with enhanced fingertip controls and a multi-view rearview camera are standard. Also standard are a two-driver memory system, auto-dimming rearview mirror, HomeLink®, Forward Collision Warning (FCW) and Lane Departure Warning (LDW). To deliver excellent sound isolation, the RLX makes use of comprehensive sound deadening materials, an acoustic glass windshield, and an Active Sound Control system that helps cancel out interior noise. Acura Bluetooth® HandsFreeLink® wireless telephone connectivity is also standard, and allows the RLX driver to dial a Bluetooth®-enabled mobile phone by voice command.
Acura is known for its leadership in the adoption of advanced information and media technologies, and the 2014 RLX Sport Hybrid is no exception. The next generation of AcuraLink® delivers a broad spectrum of capabilities using both an embedded two-way cellular communication and cloud-based connectivity via the owner's compatible smart phone and data plan. AcuraLink features Pandora® interface, Aha™ by Harman cloud-based interface, and SMS text and e-mail messaging functionality with compatible cell phones.
The Pandora® interface allows custom internet radio stations to be played through the Acura RLX Sport Hybrid's audio system via a connected compatible smart phone. Aha also uses a paired smart phone to provide hundreds of channels of in-vehicle content, including custom internet radio, podcasts, audio books, Facebook and Twitter newsfeeds. AcuraLink services are offered in three tiers: Standard, Connect and Premium
Two audio systems are offered in the RLX Sport Hybrid starting with an impressive 14-speaker Acura/ELS® Studio Premium Audio System in the RLX Sport Hybrid Technology grade. The RLX Sport Hybrid Advance grade features a 14-speaker Krell ultra-premium audio system — with speakers and amplifiers engineered over the last four years — sets a new benchmark in automotive audio performance.
The RLX Sport Hybrid offers a wide spectrum of audio and information features. All audio systems feature AM/FM, HD radio and XM radio®. The standard USB port allows the connection of a flash drive, iPhone or iPod. Compatible Bluetooth® devices can also connect to the RLX wirelessly. When equipped with a navigation system, CDs can be copied onto the on-board hard drive and selected using Song-by-Voice.
The standard Acura Navigation System with Voice Recognition™ is a hard-drive based system. It features continuously updated traffic maps, including highways and, for the first time, surface street traffic information within the United States and Canada, and also offers traffic rerouting to help navigate around slow-downs. The system includes Zagat® restaurant information.
The navigation system's voice recognition feature allows you to perform the most frequently used functions of the audio, climate control, and navigation systems without taking your hands off the wheel. The advanced voice recognition technology responds to over 1,500 commands, in addition to spoken street names.
A broad spectrum of driver-assistive technologies is also offered on the RLX Sport Hybrid. Forward Collision Warning (FCW) and Lane Departure Warning (LDW) and Blind Spot Information (BSI) system are standard. The RLX Sport Hybrid with Advance package adds standard Adaptive Cruise Control (ACC) with Low-Speed Follow, Lane Keeping Assist System, and front and rear parking sensors.
Design and Materials
The new RLX Sport Hybrid interior is a fresh take on premium luxury, with clean and elegant lines, high-end detailing, and intuitive functionality. A design concept called "dual personal structure" guided development, and divides the space into areas centered on the driver and front passenger, complemented by a wide center stack and console that is easily accessible to each person.
With more on-board electronic features than ever before, the RLX designers rethought the user interface of the central stack, and developed a simple two-screen system. The 8-inch color audio/information screen is placed high in the instrument panel, where it's close to the driver's sight line. The lower, 7-inch touch screen eliminates the need for dozens of hard keys, and has contextual menus that make operation simple. The quality of interior materials, fit and finish have received close attention to reflect the discerning nature of the RLX owner, with stitched leather instrument panel detailing, available Milano leather seating, and soft-touch materials throughout.
Driver-Oriented Cockpit
Intuitive functionality has always been a priority in Acura design and is now a core element of Acura's focus on creating the synergy between man and machine - enabling the driver to focus on operating the vehicle rather than various controls. All important systems and controls are within easy reach of the driver. Controls for the systems used most frequently—audio, cruise control, Bluetooth® HandsFreeLink®, available satellite-linked Acura Navigation System with Voice Recognition™ and Multi-Information Display—are conveniently positioned on the steering wheel. The main instrumentation is an easy-to-read analog design, supplemented with digital and graphic displays. Even though the RLX gives its driver access to many electronic features, the interface is simple and welcoming. Sight lines are clear with important items placed within easy view.
Typical of Acura interior design, the soft-touch switchgear of the RLX is engineered to deliver a quality feel and positive action. Helpful features, such as power side mirrors that can be set to automatically tilt-down when Reverse gear is engaged, make parking easier. A standard multi-view rearview camera provides a choice of three different views, displayed on the bright, colorful 8-inch audio/information screen.
Leather-Wrapped Steering Wheel
The leather-wrapped steering wheel with euro-style stitching incorporates the most commonly used controls, allowing the driver to keep their hands on the wheel. Phone and audio controls are on the left side; cruise control and multi-info display controls are on the right side, along with the switches for Lane Keeping Assist System (LKAS) and Adaptive Cruise Control with Low-Speed Follow on the Advance grade.
Tucked out of view but within fingertip reach are a pair of paddle shifters that allow for manual operation of the Sequential SportShift 6-speed automatic transmission.
Instrumentation
The RLX Sport Hybrid has sophisticated analog instrumentation with large tachometer and speedometer flanking a Multi-Information Display (MID) which provides a range of information and trip computer functions. The tachometer and speedometer are flanked by an analog coolant temperature and fuel level gauge.
Head-Up Display
The Acura RLX Sport Hybrid features the first application of Acura's new Head-Up Display, which utilizes a concave mirror located behind the instrument panel to project a broad range of information on the lower portion of the windshield directly in front of the driver.
Display modes can be selected by a steering wheel-mounted thumb dial. Display modes include:
Multi-Information Display
A highly functional instrument panel gives the RLX driver instant access to critical information. It also provides important vehicle information via a Multi-Information Display (MID) positioned between the tachometer and speedometer. Controls positioned on the right side of the steering wheel allow the driver to cycle the MID display through multiple screens of information from sources including LKAS and ACC and more. The Maintenance Minder™ system alerts the RLX driver of upcoming maintenance needs via the MID and should a fault occur with the vehicle, specific warning information will appear.
MID information categories include:
All RLX models feature a bright, full-color 8-inch audio/information screen positioned high in the center stack of the instrument panel. Its high placement puts it close to the driver's line of sight where it's easy to see. Besides audio system information, the screen also offers backup camera views and access to a range of customizable features.
On-Demand Multi-Use Display™
The impressive range of technology offered in the RLX presented designers with a challenge of balancing capability with simplicity. The solution came in the form of a 7-inch On Demand Multi-Use Display™ (ODMD) touch screen positioned within easy reach of the driver and front passenger. The touchscreen controls a wide range of features, and with its contextual menus, it displays relevant items while minimizing clutter. To make it easy to use, the screen offers audible and vibratory touch feedback—both can be adjusted or shut off based on the owner's preference. Customizable shortcuts allow the RLX driver to set easy-to-access presets for Places, Phone, Climate, Audio and Valet functional categories.
The touchscreen display also provides access to the RLX's Valet Mode. Using the touch screen, the owner can assign a Personal Identification Number (PIN) that locks out the use of the trunk release and glove box, navigation system, audio system and phone.
Multi-Angle Rearview Camera
A multi-view rearview camera is standard on all grades. It offers three viewing angles (wide view, normal view and top view). Drivers may select the preferred view according to driving conditions. The rearview image is displayed on the 8-inch color audio/information display, or on the navigation system display (in the same location) on models equipped with navigation. On-screen guidelines help the driver better judge distances, and predictive guidelines help make maneuvering in reverse easier.
One-Touch Turn Signals
The RLX's one-touch turn signals provide increased convenience for the driver when making routine lane changes. In addition to normal operation, a quick movement of the turn signal lever (between 0.4 sec. and 1.0 sec.) will cause the turn signals to flash three times.
Seating
Considering the luxury mission and performance capabilities of the RLX, its seating required extensive engineering development. Detailed analysis of seats from competitive makes helped set engineering targets that balanced firm support, a feeling of secure stability when maneuvering, and the supple comfort required for all-day driving.
An all-new internal structure (introduced in the RLX) lays the foundation for comfort. Specially compounded padding in four different densities is used strategically to blend support and comfort, with special firm inset pads positioned internally in the side bolsters for stable lateral support. Special attention was given to the Milano leather seat coverings to make for a soft touch, with the right amount of surface friction to help keep passengers securely in position while cornering.
The driver and passenger front seats feature 12-ways of power adjustability (8-way power seat plus 4-way power lumbar support). The pneumatic lumbar support can be adjusted both longitudinally and vertically. All driver's seat power adjustments are included in the Smart Entry system that (among many other features). The system stores a pair of user profiles regarding seat settings—one for each of the two key fobs that come standard with the RLX Sport Hybrid.
Heated front seats are standard in the RLX Sport Hybrid. Electronic control allows for three temperature settings, along with faster warm-up and smoother, more precise temperature control. Ventilated front seats and heated rear seats are standard in the Advance grade.
The RLX offers rear seat occupants exceptional comfort and room. Specially sculpted front seat seatbacks generate extra leg room for rear seat passengers. In the rear seat area, the outer seating positions are carefully engineered (complete with side bolsters) to simultaneously combine solid lateral support with luxurious comfort on long trips.
Interior Lighting
The RLX theme of efficient driver control and easy-to-read components carries on after dark. The analog instruments are backlit with LED lighting and feature high-contrast markings. The gauge package progressively illuminates to give the driver a welcoming feel upon entry. When the door is first opened, the instrument lighting comes to life and then brightens progressively to 100-percent illumination when the ignition is switched on. The illuminated instrument panels then come alive, indicating that the car is ready to go. At the end of the drive, the instrument lighting dims progressively.
All the interior switches and vent controls are illuminated to make them easy to locate at night, including the switches on all four doors and the steering wheel. In addition to front and rear overhead interior lights and map lights, the RLX also has a complement of low-level interior cabin lighting. Ambient lighting in the ceiling illuminates the front center console and the rear flip-down armrest. The front foot wells also have ambient lighting that brightens substantially when the doors are opened.
Front and rear interior door handle areas are illuminated to make them easy to find at night, and the front door storage compartments, glove compartment, and center armrest compartment are all internally illuminated. All four doors have courtesy lights that illuminate when the doors are open. The RLX interior lights feature "theater dimming," which can be set by the driver to one of several dimming rates via the Multi-Information Display. The trunk has interior lighting, plus the trunk lid has lighting that illuminates the bumper and sill area when the lid is opened.
Interior Convenience
The RLX Sport Hybrid interior offers a range of storage and convenience features for the driver and passengers. The dual-hinged front center armrest incorporates a unique lid design that can flip open to the right or left, for conveniently accessing the center console storage compartment.
A USB port inside the console allows for easy connectivity of items such as an iPod®, iPhone® or a removable flash drive storage device. The USB port is located alongside a traditional AUX jack that allows connectivity of an MP3 music player. Just ahead of the console, a pair of illuminated cupholders is conveniently positioned.
Inside the glove compartment is a separate document box to accommodate the Owner's Manual as well as important registration and insurance papers. The separate document box arrangement not only keeps paperwork neatly contained, but it also frees up storage space in the main glove box compartment. In the rear seating area, a wide fold-down center armrest has a padded top. A pullout dual beverage holder is built into the rear armrest.
Cargo Carrying Versatility
The RLX Sport Hybrid has a fully finished, 12.0 cubic-foot trunk (compared to 15.1 on the two-wheel drive RLX with Krell Audio and Advance packages). An underfloor storage compartment provides added space for small items. The acoustic properties of the trunk and the rear deck speakers were specially engineered to create the best possible sound performance from the three available audio systems. To allow room for longer items, a locking trunk pass-through is provided. A cargo net with a network of anchor points help keeps trunk cargo securely in position.
For a cleaner appearance and to avoid damage to luggage, the trunk lid is supported by fully concealed hinge mechanisms. The trunk can be opened via a remote release mounted on the driver's door panel, by pulling the exterior release lever on the trunk lid (when carrying the Smart Entry keyless access fob), or with a manual release accessible through the locking trunk pass-through. There is also an emergency trunk opener, located near the trunk latch that can be found in total darkness thanks to a glow-in-the-dark yellow color treatment.
GPS-Linked, Tri-Zone Automatic Climate Control
The RLX Sport Hybrid has GPS-linked temperature control, tri-zone automatic climate control system that lets the driver, front passenger and rear passengers set temperatures to their individual liking. Designed for exceptionally quiet operation the system also includes a selectable automatic recirculation mode that is controlled by an electronic control unit (ECU) and an air quality sensor.
To operate the HVAC system, easy-to-read buttons and controls are positioned within easy reach. The HVAC system can also be controlled by voice command, and additional custom settings can be accessed through the 7-inch On-Demand Multi-Use Display™ interface. The climate control system's control logic is designed to provide smooth operation with subtle changes in airflow.
With its position-sensing ability, the available GPS navigation system contributes to overall passenger comfort with a 3D solar sensing feature. Based on continuously updated vehicle position information, the navigation system determines the position of the sun relative to the driver and passenger. Combining this information with input from a solar sensor located on top of the instrument panel, the climate control system automatically adjusts the temperature and airflow from side to side as needed to compensate for asymmetrical solar heating.
Rear Sunshades
For increased rear seat privacy, reduced solar loading and greater passenger comfort on sunny days, the Advance grade RLX Sport Hybrid has a power operated rear-window sunshade along with manually operated expanded sunshades for each rear door side window.
Active Noise Control (ANC) and Active Sound Control (ASC)
Key contributors to the RLX Sport Hybrid's quiet, refined interior are Active Noise Control (ANC) and Active Sound Control (ASC). The two systems are comprised of dual overhead microphones, an ANC/ASC electronic processor, and the audio system's speakers. ASC/ANC operates whenever the RLX engine is running, even if the audio system is turned off.
ANC is designed to reduce low frequency sound in the cabin caused mainly by the roughness of the road surface. The overhead microphones pick up sound waves and send them to the ANC/ASC processor, which creates and sends a precisely timed "reverse phase" audio signal to a special amplifier. In turn, the amplifier drives the door speakers to cancel the original noise signal.
ASC is a related technology designed to improve the engine sound quality by making the sound pressure level more linear as the engine revs increase. Typically, engine noise doesn't increase in a linear way with rising revs; instead there can be many resonances that create peaks and valleys in the sound pressure level and an uneven sound. ASC helps smooth out the engine sound by creating a same-phase or reverse-phase sound signal as needed and sending it to the speakers. Though the system offers benefits from idle to redline, it makes the largest difference in the range between 1000 and 2000 rpm, where it lowers the sound pressure level with a reverse-phase audio signal.
AcuraLink® Connectivity System
The RLX launched the next generation of AcuraLink®, Acura's cloud-based connected car system that first launched in 2005. This new generation uses embedded cellular technology built into the RLX and RLX Sport Hybrid, along with the owner's compatible smartphone and data package, to bring a broad range of convenience, media and available security features to the RLX lineup.
AcuraLink is the new center point for owners for hands-free access to cloud-based services, audio and information, and is designed to keep RLX drivers informed and connected while on the go. AcuraLink is available on both the RLX Sport Hybrid and RLX Sport Hybrid with Advance.
The connectivity required for AcuraLink's various features is distributed between the RLX's embedded system (for some of the fee-based features) and the owner's compatible smartphone and data package (for free features).
AcuraLink works with the owner's compatible smartphone and data package to connect the RLX with music and information resources, internet apps, and more. Aha™ by Harman is a key AcuraLink resource. Aha organizes the RLX owner's favorite content from the web into personalized on-demand radio stations in the vehicle. Aha is a comprehensive, cloud-based platform optimized for the automotive environment that provides a simple integration point for AcuraLink equipped vehicles to bring in a wide range of current and future applications into the audio system head unit. This new capability allows users to access their favorite podcasts, internet and terrestrial radio, on-demand music, restaurant recommendations via Yelp, and even audio updates from Facebook and Twitter.
Owners can use the AcuraLink website to access information or change preferences. AcuraLink allows for Twitter and Facebook access.
SMS Text Message Function
All RLX models have a standard SMS Text Message function that can read incoming texts aloud over the audio system, and allow the driver to reply with any of six factory preset messages. The system works with SMS-capable cell phones that have an active data plan and the Message Access Profile (MAP), such as the Blackberry, Droid X and others. When running iOS6, an iPhone can receive text messages, but cannot send replies using the RLX interface.
Once a compatible phone is paired with the RLX's Bluetooth® HandsFreeLink® system, the text messaging function is enabled. When the phone receives a text message, an alert appears on the audio/information screen (or navigation screen in vehicles equipped with navigation). Using the audio system controls, the driver can choose to have the message read aloud, can select among the preset reply choices, or can call the sender - all without handling their phone. To help minimize driver distraction, the text of the incoming message is not displayed on-screen while the vehicle is moving.
Available factory preset text replies:
Like all Acura vehicles, the RLX Sport Hybrid has a standard Bluetooth® HandsFreeLink® hands free telephone interface that is designed to work with most Bluetooth®-enabled mobile phones. Bluetooth® is a radio frequency-based technology that allows portable devices (such as mobile cellular telephones, PDAs, and laptop computers) to communicate wirelessly. The RLX's HandsFreeLink® system is compatible with Bluetooth®-enabled cellular phones that have the Hands Free Profile (HFP). After the driver completes a one-time pairing process, the RLX can communicate wirelessly and securely with the driver's cell phone when it is within approximately 10 feet of the car. The phone needs to be on, but can be stored in a pocket, briefcase, purse, or anywhere inside the RLX cabin— thus there is no need to worry about where to place the cellular telephone.
Bluetooth® HandsFreeLink® allows the driver to send or answer telephone calls without removing their hands from the steering wheel. When a call comes in, the number of the incoming caller is displayed on the Multi-Information Display (MID) located in the instrument cluster. In addition, the phone ring tone is played over the audio system. If the driver chooses to answer the phone call, a press of the steering wheel-mounted "Pick up" button mutes the audio system and the incoming caller is heard over the RLX's audio system speakers. Working with an overhead array microphone, the HandsFreeLink® system helps cancel "echo effect" and reduces background noise to improve the transmission quality of the driver's speech.
To send a call hands-free, the RLX driver can dial the number by voice, again using fingertip controls mounted on the steering wheel to activate the system. The driver also can store frequently called numbers in the system's memory using unique voice tags. Up to six different compatible mobile phones can be registered with the RLX's Bluetooth® HandsFreeLink® system.
Acura/ELS Studio® 14-Speaker Premium Audio
The RLX Sport Hybrid Technology grade features the Acura/ELS Studio® Premium Audio System, engineered specifically for the RLX by Panasonic and legendary recording engineer Elliot Scheiner to recreate the emotional experience you feel when you enjoy a live performance. The system's hardware matches the quality of recording studio equipment, and features high power amplification and advanced speaker technology. It includes a single-disc CD player, AM/FM/HD/XM/HDD and delivers detailed, well-balanced sound to all seating positions
The system's 14 speakers are precisely located throughout the RLX cabin. Six titanium-domed tweeters are arrayed in the interiors; two near the A-pillars, two in the rear doors, and two more on the rear deck. A 3.1-inch super dynamic range speaker is centered in the top of the instrument panel, and six big 6.7-inch super-dynamic range speakers are placed in the door and on the rear deck. Finally, an 8-inch SLDD (Super Low Distortion Driver) subwoofer is position in the center of the rear deck.
In addition to traditional source inputs, the RLX is fitted with a USB port that allows for easy connectivity to items such as an iPod® or iPhone® along with a removable flash drive storage device containing WMA, MP3 or AAC format music. The USB port is located alongside a traditional AUX jack (that allows connectivity of an external MP3 music player) located in the center console's storage compartment.
Krell 14-Speaker Ultra-Premium Audio System
The Acura RLX Sport Hybrid with Advance features a Krell audio system that is designed to set a new standard in automotive audio performance. Krell is one of the most highly respected names in high-end audio, with a three-decade history of developing ultra-premium home audio systems. Though the new RLX system marks Krell's first production automotive application, it shares the performance goals of all Krell systems: Musical detail, three-dimensional sound presentation, and extreme volume capability. Four years of development went into the RLX 14-speaker system.
The 14 Krell speakers are positioned in the RLX cabin in the same locations as those in the Technology package. Six magnesium-domed tweeters are arrayed in the interior; two near the A-pillars, two more in the rear doors, and another pair on the rear deck. A 3.1-inch speaker is centered in the top of the instrument panel, and six large 6.7-inch Zylon® (Zylon® is a registered trade mark of Toyobo Co., Ltd. in Japan) speakers are placed in the doors and on the rear deck. Finally, an 8-inch subwoofer is positioned in the center of the rear deck.
Krell uses highly advanced speaker technology to achieve a new level of audio performance. The tweeters, for example, use magnesium diaphragms. Reproducing high frequencies requires that the tweeter diaphragm be able to move extremely fast, so ideally the diaphragm should be constructed of materials with very low mass. Aluminum is lightweight, fairly rigid, and inexpensive, but an aluminum diaphragm structure has a strong inherent resonance of around 20 kHz. This resonance is often perceived as a harsh or gritty sound. Magnesium is more expensive than aluminum, but it has the benefit of being less mass. Adding a structural ridge to the diaphragm greatly increases rigidity without additional mass. This pushes the diaphragm's resonant frequency up into the inaudible 40 kHz range. The result is extraordinary detail and extended high frequencies without any trace of harshness.
Special technology is also applied to the Krell system's six 6.7-inch speakers. The speakers use diaphragms constructed of a material called Zylon®, the world's strongest super-fiber. This very rigid material is ideal for speaker manufacturing. Zylon® responds very quickly to musical input and, more importantly, stops moving just as quickly when the musical signal stops. Compared to the polypropylene diaphragm material that is used in the vast majority of car audio speakers, Zylon® has far less unwanted vibration, resulting in a much cleaner and more detailed sound.
Because of the ability of the magnesium tweeters and Zylon® speakers to reveal fine details in the music, the highest quality crossover components were required. Heavy gauge, pure copper inductors and top-of-the-line polypropylene capacitors from Bennic maintain perfect signal integrity.
The discrete amplifier channels are designed exactly like the channels in a high-end Krell home amplifier. The main channels feature the same robust, high quality bipolar power transistors used in flagship Krell home amplifiers. The result is an amplifier that has one-third less distortion than amplifiers found in competing flagship luxury sedans. Using a class D channel for the subwoofer increases that amplifier's efficiency and reduces its size. The DirectFET class D amp is designed for low EMI (electro-magnetic interference) to keep the main output channels as noise-free as possible.
For the best audio performance, the Krell system uses metal speaker grilles. Because metal is inherently stronger than the plastic used for most grilles, the grilles can have a more open area without compromising strength. Metal grilles also vibrate less than typical plastic grilles.
Special care went into mounting the speakers with mounting plates that are thick and heavily reinforced. In combination with the specially engineered door panels, the mounting plates provide an extraordinarily rigid, stable mounting surface for each speaker element. Sound energy that would otherwise be wasted in the drive-unit or door vibration is accurately transmitted to the listener, resulting in tighter bass response and improved musical detail.
XM® Radio
XM® Radio is a standard feature within the RLX audio system and it provides more than 200 channels of digital programming with near CD-quality sound. The XM® signal is beamed to two broadcast satellites positioned in geostationary orbit above Earth. The beams from these two broadcast satellites combine to span the entire continental United States and some of Canada.
XM® Radio programming includes channels devoted to music, sports, talk, traffic, weather, children's programming and entertainment. Of the more than 200 XM® channels, 71 are commercial-free. When the RLX's audio system plays XM® Radio, the Audio/Information screen (or navigation display in vehicles with navigation) displays the current category, station song title, or artist's name, while the current category and station are also displayed on the On-Demand Multi-Use Display™. A complimentary three-month subscription to the XM® Radio service is included with purchase of a new RLX, and customers are able to continue the service or cancel any time afterwards.
HD Radio™
All RLX models feature standard HD Radio™. HD Radio technology converts the traditional analog radio broadcast to digital and provides advanced audio and data features that enhance the listening experience. Sound quality is radically improved, and unlike satellite radio, HD Radio is free.
Instead of sending out one analog signal, HD stations send out a bundled signal - both analog and digital. Because it is digital, textual data such as traffic, stock info and song titles can be sent out, as well. Unlike conventional radio, HD Radio stations broadcast extra channels, which are called HD2/HD3. These added channels offer RLX owners a universe of additional choices.
Hard Disk Drive (HDD) Audio
Hard Disk Drive (HDD) audio system featuring the 15GB HDD-based memory are programmed from the factory to copy music tracks from pre-recorded CDs, enabling customers to store many CDs worth of music on-board for easy access. The system will not copy music from burned CDs or from USB flash drives. Based on music files measuring an average size of 4.2MB per song at a 128kbps bit rate, approximately 3,500 songs can be loaded into the 15GB system (approximately 175 CDs).
The HDD-based system records music at 6-times that of the original music track time. Two recording quality settings (192 kbps or 128 kbps) are available. The automatic-recording default setting can be changed to manual if desired.
The audio system can display information about the music tracks, such as artist names and song titles using the Gracenote® database in the system software. This database can be periodically updated to reflect newly released music. Gracenote updates can be downloaded by RLX owners at automobiles.acura.com in the Ownerlink section (up to four updates per year maximum). The updates can then be loaded onto a CD-R or onto a USB thumb drive, which in turn can be used to update the RLX audio system. Even without a Gracenote update, newly released audio tracks will play on the sound system, without accompanying text information on genre, artist, album name and track name.
Song By Voice®
Song by Voice® is standard on the RLX Sport Hybrid. From most navigation screens, the driver can simply press the TALK button on the steering wheel. With so much audio content potentially available on the HDD or from an iPod, RLX engineers set out to make it easy to find content. So drivers can simply give a voice command, such as "Play song 'Danny Boy,'" and the system will automatically begin playback. Song by Voice also lets the driver choose music by artist, album, track name, genre, playlist and even composer.
Forward Collision Warning (FCW)
The RLX Sport Hybrid features a new Forward Collision Warning (FCW) system as standard equipment. When the camera-based system detects a vehicle ahead and determines that collision is possible, it provides the driver with visual and audible alerts to encourage avoidance actions. The system does not include an automatic braking function.
Lane Departure Warning (LDW)
Lane Departure Warning (LDW), also standard, provides the driver with visual and audible alerts if the vehicle begins to move out of a detected lane without the turn signal activated. A button on the lower left portion of the instrument panel allows the system to be switched on and off.
Smart Entry Keyless Access System
The RLX features Acura's Smart Entry with Push Button Start. The Smart Entry system lets the RLX owner gain access to the vehicle without having to operate the key fob or conventional key. The Smart Entry remote has a unique digital identity and the RLX can be unlocked when the driver grabs one of the door handles (front doors only on the RLX and RLX with Navigation) while the remote is in his/her possession. When carrying the fob (or if all doors are unlocked), the trunk can be opened by pressing a button located on the RLX's rear fascia.
Once the driver has opened the door and is seated, the Smart Entry system allows the RLX to be started by pushing the Engine Start/Stop button positioned on the instrument panel. When leaving the car, a press of the soft-touch button on the exterior door handle locks all the doors. Alternatively, pressing the Lock button on the Smart Entry remote will also simultaneously lock all doors.
Smart Entry also features a unique "quick vent" feature. When the operator depressed the "unlock" button on the keyless remote for two seconds after unlocking the doors, the system lowers all four windows and opens the power moonroof to quickly vent built-up interior heat. In addition, by inserting the built-in key into the driver's door lock and holding the key in the "lock" position, all open windows can be simultaneously raised.
Adaptive Cruise Control with Low-Speed Follow
The Acura RLX Sport Hybrid Advance features Adaptive Cruise Control (ACC) with Low-Speed Follow. This vehicle speed and distance control system uses a grill-mounted millimeter-wave radar to monitor the distance between the RLX and the vehicle directly ahead. Like a conventional cruise control system, the ACC system can maintain a preset speed. In addition, by combining radar data with data from speed sensors, ACC can regulate the RLX's speed to maintain a preset following distance interval.
The Low-Speed Follow feature can reduce the driver workload in congested traffic by maintaining a selected distance interval, even in stop and go traffic. If a vehicle detected ahead is in range of the system and slows to a stop, the RLX will also come to a stop. When the vehicle ahead moves forward, the vehicle icon on the multi-information display blinks. With a press of the RES/+/SET/- switch up or down, or with a press of the accelerator pedal, the RLX will resume Low-Speed Follow mode.
Acura RLX Sport Hybrid
In early 2013, Acura introduced the 310-horsepower RLX luxury-performance sedan with a new 3.5-liter all-aluminum, direct-injected VTEC V-6 engine, a number of signature Acura technologies and Precision All-Wheel Steer™ (P-AWS™), creating a new value proposition with superior cabin space and outstanding driving performance in Acura's flagship sedan. Acura is again raising the bar with the introduction of the Acura RLX Sport Hybrid SH-AWD™, the most powerful and technologically advanced Acura sedan yet and the first to apply Acura's groundbreaking new three-motor Sport Hybrid system with electric SH-AWD (Sport Hybrid SH-AWD).
With a direct-injected V-6 engine and an all-new 7-speed dual-clutch transmission (DCT) with built-in motor-generator powering the front wheels, and two rear electric motors powering the rear wheels, the 377-horsepower RLX combines V8-like performance and 4-cylinder-like fuel efficiency along with exhilarating "on the rails" handling performance, courtesy of its electrically-powered torque-vectoring all-wheel drive system.
The Acura RLX Sport Hybrid further elevates Acura's commitment to create "the synergy between man and machine" -vehicles that truly respond to the will of the driver - and deliver new levels of technology-enhanced performance, comfort and convenience. Like the RLX with P-AWS™, the RLX Sport Hybrid delivers class-leading interior space and comfort and a host of signature Acura technologies, including Jewel Eye™ LED headlights, Lane Keeping Assist, Adaptive Cruise Control with Low-Speed Follow, and the next generation AcuraLink® connected car system. In addition, the RLX Sport Hybrid applies new Acura technologies including:
- Head-Up Display - this first-ever Acura head-up display projects key information at a glance on the lower portion of the windshield directly in front of the driver. Display modes include SH-AWD system operation, tachometer, turn-by-turn navigation, compass, ACC/LKAS along with vehicle speed.
- Electronic Gear Selector - the RLX also is the first Acura to feature Acura's new fully electronic push-button gear selector, eliminating the conventional shift-lever and allowing the driver to select drive mode (Drive, Neutral, Park) at the push of a button. In addition, the system will automatically engage the Electronic Parking Brake when the driver selects park and unbuckles his/her seatbelt.
- Reactive Force Pedal - in place if a conventional spring mechanism providing force against the driver's push on the gas pedal, the RLX Sport Hybrid utilizes an electric mechanism that dynamically varies pedal force to assist the driver in applying the optimum amount of engine power in any driving condition. For example, when climbing a snowy hill, the Reactive Force Pedal will increase pedal force to discourage the driver from applying too much engine torque that may lead to unwanted tire slip.
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Using smart packaging, advanced aerodynamic design and lightweight body construction, along with fuel-saving hybrid powertrain technology, the RLX Sport Hybrid has the most spacious five-passenger seating in its class along with a top-class EPA fuel-economy rating of 28/32/30 mpg (city/highway/combined).
With a longer wheelbase and wider greenhouse than competing mid-luxury sedans, the new Acura RLX Sport Hybrid SH-AWD delivers full-size interior space in a nimbler, mid-size luxury sedan package. The RLX boasts the longest rear-seat legroom (38.8 inches), and best front (59.6 inches) and rear (57.0 inches) shoulder room in the mid-luxury class. The RLX advanced body design makes extensive use of high-strength steel and aluminum, further aiding its outstanding fuel efficiency, straight-line performance, and superior handling agility.
The new RLX Sport Hybrid SH-AWD offers an incredible array of advanced safety, driver-assistive and information and media technologies, including the standard next-generation AcuraLink™ connected car system and Multi-Angle Rearview Camera; along with available Lane Keeping Assist System (LKAS), Adaptive Cruise Control with Low-Speed Follow and Blind Spot Information (BSI) system. Safety systems available on the RLX Sport Hybrid include technologies such as Collision Mitigation Brake System (CMBS), Forward Collision Warning (FCW) and Lane Departure Warning (LDW).
Utilizing Acura's next-generation Advanced Compatibility Engineering™ (ACE™) body structure, along with seven airbags (including a driver's knee airbag), the RLX Sport Hybrid SH-AWD is anticipated to earn top-level safety ratings, including a 5-star NCAP Overall Vehicle Score and an IIHS "TOP SAFETY PICK+" rating, including a GOOD rating in the IIHS small overlap front crash test.
The RLX Sport Hybrid also offers intuitive technology that reduces stress and simplifies the driving and ownership experience - with features such as Electronic Parking Brake with Automatic Brake Hold, a capless refueling system, Smart Entry/Smart Start keyless access system, easy-to-use and customize dual touch screens, "tensionless" e-pretension front seatbelts, and available rain-sensing windshield wipers, among others.
THE SYNERGY BETWEEN MAN AND MACHINE
As the foundation of Acura's product direction, the Synergy Between Man and Machine is the intelligent pairing of useful technologies and luxury features with the idea of creating vehicles that truly respond to the will of the driver. The focus is not on one specific technology, but on the driving experience Acura vehicles provide to the customer. From its sophisticated exterior and interior design, to its balance of performance, low emission and the top-class fuel economy ratings, and advanced and intuitive technology, the RLX Sport Hybrid is designed to exceed the expectations of Acura clients.
MARKET POSITIONING
The Acura RLX Sport Hybrid SH-AWD enters the mid-luxury segment competing against hybrid and/or all-wheel-drive versions of Audi A6, BMW 5-Series, Infiniti Q50, Lexus GS, and Mercedes-Benz E-Class. The RLX is equipped to meet these established competitors, thanks to improvements in virtually every area of its design, performance, technology, luxury and safety features.
POWERTRAIN
The 2014 RLX Sport Hybrid's all-new three-motor hybrid powertrain combines the power of a conventional V-8 engine with 4-cylinder-like fuel efficiency and the performance-enhancing capabilities of torque-vectoring all-wheel drive.
The RLX Sport Hybrid shares it basic engine architecture with the two-wheel-drive RLX with P-AWS. The 3.5-liter, 310-horsepower, 24-valve direct-injected SOHC V-6 engine with i-VTEC® and VCM™ adds an idle-stop feature to further maximize fuel efficiency, and revised cam timing to smooth engine restart after idle stop. Peak torque to the front wheels is rated at 273 lb.-ft. at 4,700 rpm (versus 272 lb.-ft. at 4,500 rpm in the RLX with P-AWS).
An all-new advanced 7-speed dual-clutch transmission (DCT) is standard on the Sport Hybrid—a first for Acura. Unlike a conventional automatic transmission, the DCT offers ultra-quick gear changes and eliminates the need for a torque converter, which significantly improves efficiency. It can operate in fully automatic mode, or can be shifted manually via steering wheel-mounted paddle shifters.
The RLX Sport Hybrid SH-AWD uses three electric motors: a single 35-kilowatt (47 hp) motor that is integrated with the 7-speed Dual Clutch Transmission supplements the V-6 engine in driving the front wheels, and a rear-mounted Twin Motor Unit (TMU) containing two 27-kilowatt (36 hp) motors that dynamically distribute electric-motor torque to the rear wheels. Both the front and rear motors capture kinetic energy during vehicle deceleration and braking and convert it to electricity to supply the Intelligent Power Unit's 72-cell, 1.3-kWh lithium-ion battery pack, located behind the rear seatback. Together, the 310-horsepower V-6 engine and three electric motors produce a total system output of 377 horsepower and 377 lb.-ft. of torque—the most ever in a production Acura.
The front motor is integrated with the 7-speed DCT and is connected to the driveshaft via a clutch. The motor accomplishes three tasks: (1) It supplements the V-6 engine in driving the front wheels when additional power is required, such as in a passing situation; (2) provides regenerative braking to the front wheels; (3) converts engine power to electricity to supplement regenerative braking in recharging the lithium-ion batteries.
Acura's mechanically-based Super Handling All-Wheel Drive (SH-AWD) made its debut on the RL luxury sedan in 2005, and has since been used on a range of Acura models in several iterations. In the RLX Sport Hybrid, SH-AWD operates independent of the gasoline engine. Drawing power from the lithium-ion battery pack, the Twin Motor Unit's two electric motors deliver torque directly to the rear wheels, thereby eliminating the weight and energy losses associated with a conventional driveshaft and differential mechanism.
When cornering, the RLX Sport Hybrid delivers more torque to the outside rear wheel, much like mechanical SH-AWD, but with more available torque at low engine speeds. Sport Hybrid SH-AWD can also simultaneously apply brake torque to the inside rear wheel during cornering to further enhance cornering control. In addition, since it doesn't rely on engine torque, electric SH-AWD can create a larger torque difference between the left and right rear wheels, even during small throttle applications, at low engine speeds or even during deceleration (such as when lifting throttle mid-corner). This substantially magnifies the positive handling benefits of SH-AWD across a much wider range of driving conditions.
Engine Architecture
The RLX Sport Hybrid 3.5-liter VTEC® V-6 has a smooth-firing 60-degree V-angle and compact overall dimensions. The V-6 has a die-cast lightweight aluminum alloy block with cast-in-place iron cylinder liners. The first ever application of direct injection in an Acura vehicle combines with i-VTEC and Variable Cylinder Management (VCM) to give the RLX a potent blend of power and fuel efficiency.
The aluminum-alloy 24-valve engine produces 310 horsepower at 6,500 and generates 273 lb.-ft. of torque at 4,700 rpm. Torque is markedly improved vs. RL in the lower ranges, where the engine typically operates. Along with the increased horsepower, the updated V-6 also contributes to increased fuel efficiency, due in part to internal friction reduction features, including an oil-ring ion-plating treatment, and plateau honing. A new tumble-type intake port design improves combustion efficiency.
Engine Block and Crankshaft
With its 60-degree V-angle, the V-6 engine is inherently smooth and has compact overall dimensions that allow efficient packaging within the vehicle. The V-6 has a die-cast lightweight aluminum alloy block with cast-in-place iron cylinder liners. Made with a centrifugal spin-casting process, the thin-wall liners are high in strength and low in porosity. The block incorporates a deep-skirt design with four bolts per bearing cap for rigid crankshaft support and minimized noise and vibration. The 3.5L V-6 uses a high-strength steel crankshaft for minimum weight.
A new cooling control spacer positioned in the water jacket surrounding the cylinders helps to maintain consistent operating temperature. Plateau honing of the cylinder lining further lowers the friction level between the pistons and the cylinders by creating an ultra-smooth surface. This two-stage machining process uses two grinding processes instead of the more conventional single honing process. Plateau honing also enhances the long-term wear characteristics of the engine.
Pistons/Connecting Rods
Designed with special "cavity-shaped" crowns, the pistons help maintain stable combustion and contribute to stratified-charge combustion. Ion-plated piston rings help reduce friction for greater operating efficiency. The compression ratio is 11.5:1. Heavy-duty steel connecting rods are forged in one piece and then the crankshaft connecting rods are "crack separated" to create a lighter and stronger rod with an optimally fitted bearing cap.
Cylinder Heads/ Valvetrain
Like other Acura V-6 powerplants, the RLX Sport Hybrid engine's 4-valve cylinder heads are a single-overhead-camshaft design, with the cams driven by the crankshaft via an automatically tensioned toothed belt. Made of low-pressure cast, low-porosity aluminum, each cylinder head incorporates a new "tumble port" design that improves combustion efficiency by creating a more homogeneous fuel-air mixture. An integrated exhaust manifold cast into each cylinder head reduces parts count, saves weight, improves flow and optimizes the location of the close-coupled catalyst.
i-VTEC Valve Control System
The RLX Sport Hybrid V-6 engine combines Variable Cylinder Management (VCM) with Variable Valve Timing and Lift Electronic Control (VTEC), which changes the lift profile, timing and lift duration of the intake valves. A switching mechanism allows each cylinder to operate with low-rpm valve lift and duration or high-rpm lift and duration. The rear cylinder bank's valve gear can also leave all intake and exhaust valves closed to maximize fuel efficiency during cylinder deactivation.
The "intelligent" portion of the system is its ability to vary valve operation based on the driving situation and engine rpm. At low rpm, the VTEC intake valve timing and lift are optimized (low lift, short duration) for increased torque, which allows a wide range of 3-cylinder operation. As engine rpm builds past 5,000 rpm, the VTEC system transitions to a high-lift, long-duration intake cam profile for superior high-rpm engine power.
Variable Cylinder Management ™ (VCM™)
The RLX Sport Hybrid engine employs Acura's Variable Cylinder Management (VCM) cylinder deactivation technology. The VTEC system combines with Active Control engine Mounts (ACM) to allow the VCM system to operate with three cylinders in a wide range of situations to maximize fuel efficiency and lower emissions. When greater power is needed, the system switches seamlessly to 6-cylinder operation. With the strong power output of the Direct Injection RLX engine, a 4-cylinder operating mode is not needed.
During startup, aggressive acceleration, or when climbing hills - any time high power output is required - the engine operates on all six cylinders. During moderate-speed cruising and at low or moderate engine loads, the system operates just the front bank of three cylinders.
The VCM system can tailor the working displacement of the engine to match the driving requirements from moment to moment. Since the system automatically closes both the intake and exhaust valves of the cylinders that are not used, pumping losses associated with intake and exhaust are eliminated and fuel efficiency gets a further boost. The system combines maximum performance and maximum fuel efficiency - two characteristics that don't typically coexist in conventional engines.
VCM deactivates specific cylinders by using the i-VTEC (intelligent Variable Valve-Timing and Lift Electronic Control) system to close the intake and exhaust valves while the Power Control Module (PCM) simultaneously cuts fuel to those cylinders. The spark plugs continue to fire in inactive cylinders to minimize plug temperature loss and prevent fouling induced from incomplete combustion during cylinder re-activation.
The system is electronically controlled, and uses special integrated spool valves in the cylinder heads. Based on commands from the system's electronic control unit, the spool valves selectively direct oil pressure to the rocker arms for specific cylinders. This oil pressure in turn drives synchronizing pistons that connect and disconnect the rocker arms.
The VCM system monitors throttle position, vehicle speed, engine speed, automatic-transmission gear selection and other factors to determine the correct cylinder activation scheme for the operating conditions. In addition, the system determines whether engine oil pressure is suitable for VCM switching and whether catalytic-converter temperature will remain in the proper range. Importantly, the drive by wire control is able to finely match torques in 6-cylinder and 3-cylinder combustion modes, making the transition between the two virtually unnoticeable.
Direct Injection System
Conventional engines using multi-port fuel injection mix fuel and air before they enter the combustion chamber. With direct injection, fuel is injected directly into each combustion chamber. This allows for better combustion and overall efficiency.
The RLX V-6 engine is the first application of direct injection for an Acura vehicle in the United States. The system features a compact, high-pressure, direct-injection pump that allows both high fuel flow and pulsation suppression, while variable pressure control optimizes injector operation. A multi-hole injector delivers fuel directly into each cylinder (not to the intake port, as in conventional port fuel injection designs).
The multi-hole injectors can create the ideal stoichiometric fuel/air mixture in the cylinders for good emissions control. Theoretically, a stoichiometric mixture has just enough air to completely burn the available fuel.
Based on the operating conditions, the direct-injection system alters its function for best performance. Upon cold engine startup, fuel is injected into the cylinders on the compression stroke. This creates a weak stratified charge effect that improves engine start-up and reduces exhaust emissions before normal operating temperature is reached.
Once the engine is fully warm for maximum power and fuel efficiency, fuel is injected during the intake stroke. This helps create a more homogeneous fuel/air mix in the cylinder that is aided by the high-tumble intake port design. This improves volumetric efficiency, and the cooling effect of the incoming fuel improves anti-knock performance.
Active Control Engine Mounts and Active Sound Control
A new, more powerful 28-volt Active Control Engine Mount system (ACM) is used to minimize the effects of engine vibration as the VCM system switches cylinders on and off. The 28-volt ACM is a key factor in the VCM's broad range of operation in the new RLX. Sensors alert the Electronic Control Unit (ECU) to direct ACM actuators positioned at the front and rear of the engine to cancel engine vibration. In the cabin of the RLX, an Active Sound Control system further reduces low frequency sound relating to the function of the VCM system.
Vibration Reduction Technology
Since the RLX Sport Hybrid's gasoline engine can be shut down during certain driving conditions (idle stop), it incorporates measures to mitigate engine vibration during restarts. Compared to the two-wheel-drive RLX, the RLX Sport Hybrid has unique intake cam profiles that close the intake valves later, effectively lowering the compression ratio at startup to reduce vibration. To further reduce vibration, the electrically actuated hydraulic Active Control Mounts are synchronized with engine start-up. A dual-mass flywheel helps further reduce engine vibration when the gasoline engine is in operation.
Drive-by-Wire Throttle System
The RLX doesn't use a conventional throttle cable, but instead has smart electronics that "connect" the throttle pedal to a throttle valve inside the throttle-body. The result is less underhood clutter and lower weight, as well as quicker and more accurate throttle actuation. Plus, specially programmed "gain" between the throttle pedal and engine offers improved drivability and optimized engine response to suit specific driving conditions.
Acura's Drive-by-Wire throttle system establishes the current driving conditions by monitoring throttle pedal position, throttle valve position, engine rpm and road speed. This information is used to define the throttle control sensitivity that gives the RLX's throttle pedal a predictable and responsive feel that meets driver expectations. There are two different throttle profiles available in the RLX. When the transmission is in "D" (Drive) the drive-by-wire system uses the normal profile. When the Sport mode is engaged by pressing the Sport button located near the shift lever, the system changes the throttle map to enhance response feel.
Direct Ignition and Detonation/Knock Control
The RLX's Power Control Module (PCM) monitors engine functions to determine the best ignition spark timing. An engine block-mounted acoustic detonation/knock sensor "listens" to the engine, and based on this input, the PCM can retard the ignition timing to prevent potentially damaging detonation. The 3.5L V-6 has an ignition coil unit for each cylinder that is positioned above each spark plug's access bore.
Close-Coupled Catalysts and Variable Flow Exhaust System
The exhaust manifolds of the 3.5L V-6 are cast directly into the aluminum cylinder heads to reduce weight, decrease parts count, and create more underhood space. The result of this casting design is that the two primary catalytic converters are positioned much closer to the combustion chambers. High-efficiency next-generation precious metal catalytic converters are mounted directly to the exhaust port of each cylinder head to enable extremely rapid converter "light-off" after the engine starts. A significant weight savings is realized by eliminating traditional exhaust manifolds.
Downstream of the close-coupled catalytic converters, a hydroformed 2-into-1 collector pipe carries exhaust gases to a secondary catalytic converter located under the passenger cabin floorboard. This high-flow secondary catalytic converter has a large inlet and outlet to enhance exhaust flow. To balance the engine's need for quiet operation at low rpm and higher flow at high rpm, the RLX's dual exhaust system incorporates a variable flow rate feature. Pressure-operated exhaust valves in each silencer are closed in normal operation, reducing exhaust noise by as much as 8 dB. When the driver demands more performance from the RLX, rising exhaust gas pressure opens both valves. The additional exhaust flow ads five horsepower to the engine's peak output.
Emissions Control
The 2014 Acura RLX Sport Hybrid utilizes a higher amount of precious metals in its under-floor catalyst to meet CARB LEV III SULEV 30 emissions standards.
A number of advanced technologies are factors in the emissions performance. The unique cylinder head-mounted close-coupled catalytic converters light off more quickly after engine start up, and a 32-bit RISC microprocessor within the powertrain control module (PCM) boosts computing power to improve the precision of spark and fuel delivery.
The RLX's V-6 engine features Programmed Fuel Injection (PGM-FI) that continually adjusts the fuel delivery to yield the best combination of power, low fuel consumption and low emissions. Multiple sensors constantly monitor critical engine operating parameters such as intake air temperature, ambient air pressure, throttle position, intake airflow volume, intake manifold pressure, coolant temperature, exhaust-to-air ratios, as well as the position of the crankshaft and the camshafts.
To further improve emissions compliance, the 3.5L V-6 makes use of an after-cat design exhaust gas recirculation (EGR) system that allows cleaner, cooler EGR gas to be fed back into the intake system. An EGR system, especially one that delivers a cleaner/cooler charge, reduces pumping loss for better fuel efficiency.
One-Touch Start System
To ensure consistent starting, the RLX has a one-touch start system that maintains starter engagement until the engine starts. Should the driver release the Start button before the engine starts, the system will start the vehicle. Simply push the Start button (with the fob in the vehicle) and the engine will automatically start up.
Noise & Vibration Control
With its 60-degree V-angle and compact, rigid and lightweight die-cast aluminum cylinder block assembly, the 3.5L V-6 powerplant is exceptionally smooth during operation. Other factors that help reduce engine noise and vibration are a rigid forged-steel crankshaft, die-cast accessory mounts, and a stiff cast-aluminum oil pan that reduces cylinder block flex.
Idle Stop Feature
Idle stop stops cylinder combustion and cylinder activation, eliminating fuel use when the vehicle is stopped, such as at traffic light or in heavy traffic conditions. The engine is restarted by the 35-kilowatt front motor-generator using energy from the lithium ion hybrid battery pack. Unlike some competing systems, the engine restart is extremely smooth and refined, practically undetectable to the vehicle's occupants.
7-Speed Dual-Clutch Transmission (DCT)
To maximize performance and fuel efficiency, the RLX Sport Hybrid has a standard 7-Speed Dual-Clutch Transmission (DCT). In the 7-speed DCT, one clutch controls the odd gears while the other clutch controls the even gears. This arrangement allows gear changes with a much smaller interruption in power to the wheels, resulting in millisecond-quick shifts. Compared to a conventional manual transmission, the operation of the clutches and shifting mechanisms are electronically controlled, eliminating the need for a clutch pedal or shift lever. Compared to a conventional automatic, the torque converter and its mechanical inefficiencies are also eliminated. The DCT transmission in the RLX Sport Hybrid also features a 17-percent wider ratio range than the 6-speed automatic transmission in the RLX with P-AWS.
Electronic Gear Selector
In the RLX Sport Hybrid, a conventional console-mounted shift lever is replaced with an all-new Electronic Gear Selector fully electronic, shift-by-wire gear selector. Park, Neutral and Drive are selected with the push of a button. Reverse is selected by pulling back a dedicated switch. Indicator lights near the buttons indicate the mode selected. As an added safety feature, if the vehicle is brought to a stop in Drive, the system will automatically select Park if the driver's seatbelt is unbuckled and the driver's door is opened.
Transmission Modes
When in Drive mode, the 7-speed dual-clutch transmission can be controlled steering wheel-mounted paddle shifters. While traveling up or down hills, Grade Logic Control alters the transmission's shift schedule to reduce shift frequency and improve speed control. A shift map in the transmission computer continually measures throttle position, vehicle speed and acceleration/deceleration, and then determines when the vehicle is on a hill. The shift schedule is then adjusted to hold the transmission in lower gears to boost climbing power or to provide engine braking when traveling downhill.
Shift Hold Control keeps the transmission in its current (lower) gear ratio when aggressive driving is detected, as in the case of decelerating at a corner entry. Shift Hold Control leaves the chassis undisturbed by excess shifting and ensures that power will be immediately available (without a downshift) at the corner exit.
The RLX Sport Hybrid features Sport and Normal modes. A selector button located on the center console allows the driver to toggle between the two operating modes. Normal mode is aimed at overall energy efficiency. Sport mode, by contrast, puts greater emphasis on the driving experience, delivering a more responsive and direct feel. Sport mode offers more aggressive and sporty shift mapping, engine rpm "blips" on downshifts, while VCM and idle stop functions are cancelled. All of the transmission logic systems work together to automatically alter shift timing based on driving conditions.
Temporary Manual Operation in "Drive"
Whether in Drive or Sport mode, special transmission logic programming allows the use of the steering-wheel-mounted paddle shifters. When the driver operates the steering wheel-mounted paddle shifters while in Drive, the transmission responds to the driver's shift command and then returns to its normal fully automatic mode if further paddle shift inputs are not made within a given time. This special logic makes it easy for the driver to command a quick downshift without leaving the comfort of Drive mode. When in Sport mode, use of the paddle shifters puts the transmission into full manual mode that remains until another mode of operation is selected.
Manual Mode
By pressing the "Sport" button located near the gear selector button, Sport mode is engaged. This mode offers automatic operation with more aggressive shift mapping. A pull on the racing-inspired paddle shifters (mounted on the steering wheel) places the transmission in fully manual mode. A digital display in the instrument cluster indicates which gear the transmission is in. The system reverts to normal fully automatic mode if further paddle shift inputs are not made within a given time.
Sport Hybrid Super Handling All-Wheel Drive (SH-AWD)
The RLX Sport Hybrid is the first production vehicle to employ an electric version of Super Handling All-Wheel Drive (SH-AWD). Previous mechanical versions of SH-AWD had the ability to vary the amount of power sent to the rear axle, and to also vary rear power distribution between the left and right rear wheels via a longitudinally mounted drive shaft and rear differential with twin electronically controlled clutch packs.
In the RLX Sport Hybrid, the driveshaft and rear differential of a conventional all-wheel drive system is eliminated, replaced by twin 27-kilowatt (36 hp) electric motors that independently drive the left and right rear wheels. Each motor can also capture regenerative braking energy and apply negative (regenerative braking) torque to further enhance cornering capability.
Independent distribution of torque to all four wheels is a key feature of SH-AWD and its ability to enhance both dynamic handling and all-weather traction. When cornering, more positive (drive) torque is applied to the outside rear wheel, while negative (regenerative braking) torque can be applied to the inside rear wheel. This torque differential creates a yaw moment, producing sharper turn-in, more linear cornering, enhanced traceability and improved steering response with reduced understeer tendencies. In addition, since the system doesn't rely on the gasoline engine for torque, electric SH-AWD can create a larger torque difference between the left and right rear wheels, even during small throttle applications, at low engine speeds, or even during deceleration (such as lifting throttle mid-corner). This substantially magnifies the positive handling benefits of SH-AWD across a much wider range of driving conditions.
Power Drive Unit (PDU)
The Power Drive Unit, packaged in the center of the vehicle beneath the center console, dictates the power management strategy of the Sport Hybrid SH-AWD system, including motor power and battery recharge.
Intelligent Power Unit (IPU)
The Intelligent Power Unit is positioned above the Twin Motor Unit, behind the rear seatback. The IPU contains the hybrid system's lithium-ion battery, 12-volt DC/DC converter, junction board, and Electronic Control Units (ECU) for the motors and the battery. The IPU is air-cooled via an integrated fan unit that draws air from inside the vehicle cabin via an intake duct located beneath the rear seats.
1.3-kWh Lithium-Ion Battery
The RLX Sport Hybrid's advanced 72-cell lithium-ion battery has 29 percent greater power density and 5 percent greater energy density compared to the lithium-ion battery in the ILX hybrid.
Front Electric Motor
A single 35-kilowatt (47 hp) electric motor is integrated with the 7-speed DCT. The motor's operating temperature is optimized by a temperature-controlled flow of Automatic Transmission Fluid (ATF) through the motor housing. By tightly controlling the motor temperature, the motor's torque output (both drive and regeneration) can be improved up to 100 percent.
Twin Motor Unit (TMU)
The RLX Sport Hybrid's Twin Motor Unit (TMU) is located in between the rear wheels, where a differential on an all-wheel-drive vehicle is typically mounted. Inside its die-cast aluminum housing are two electric motors positioned back-to-back. Each 27-kilowatt (36-horsepower) motor powers a single rear wheel and can also apply negative torque to the same wheel. A clutch allows each motor to be decoupled from its wheel in certain operating situations to improve efficiency.
Electrically Powered Air Conditioning Compressor
Since the RLX Sport Hybrid engine has an idle-stop feature, it is equipped with an electrically powered air conditioning compressor. This allows continuous air conditioning operation even when the gasoline engine is shut off.
Hybrid System Safety
To maximize passenger safety, the hybrid system components are positioned in well-protected areas of the vehicle. In the event of a collision that triggers the airbags, an automatic high-voltage circuit interrupt in the Intelligent Power Unit cuts power to the hybrid system.
100,000 Mile Tune-up Intervals
The RLX's 3.5L V-6 requires no scheduled maintenance for 100,000+/- miles or more, other than periodic inspections and normal fluid and filter replacements. The first tune-up includes water pump inspection, valve adjustment, replacement of the camshaft timing belt, and the installation of new spark plugs.
Maintenance Minder™ System
To eliminate unnecessary service stops while ensuring that the vehicle is properly maintained, the RLX Sport Hybrid has a Maintenance Minder™ system that continually monitors the vehicle's operating condition. When maintenance is required, the driver is alerted via a message on the Multi-Information Display (MID).
The Maintenance Minder™ system monitors operating conditions such as oil and coolant temperature along with engine speed to determine the proper service intervals. Depending on operating conditions, oil change intervals can be extended to a maximum of 10,000 miles, potentially sparing the owner considerable expenditures and inconvenience over the life of the vehicle. The owner-resettable system monitors all normal service parts and systems, including oil and filter, tire rotation, air-cleaner, automatic transmission fluid, spark plugs, timing belt, coolant and more. To avoid driver distraction while the vehicle is being operated, maintenance alerts are presented on the MID when the ignition is first turned on.
Design Concept
Bristling with technological advances in lighting, aerodynamics and construction, the 2014 RLX Sport Hybrid SH-AWD body has the technology to match its athletic and sophisticated design. Lightweight and aerodynamic, the body provides outstanding collision protection, confidence-inspiring high-speed stability, and exceptional fuel efficiency.
The RLX's dynamic body design combines a sleek overall shape, "aero-fused" cabin silhouette, and close tolerances for the wheel wells and body-panel gaps for a high degree of elegance and aerodynamics. The styling begins with a dynamic front-end featuring the RLX's signature Jewel Eye™ LED headlights, a substantial presence that imparts a look of power and confidence, while also proving highly aerodynamically efficient, providing powerful down the road illumination and even encompassing advanced pedestrian safety features.
Decisive character lines start alongside the hood, sweep over the front wheel arches, and then along the body sides. The body sides feature decisive character lines that subtly rise along the lower body sides, dramatically changing the light reflections and creating an especially dynamic visual signature for the RLX.
This athletic and sophisticated look is complemented by a flowing, aerodynamically sleek cabin design. Referred to by Acura designers as an "aero fused shape," the cabin is wide but also extremely aerodynamic, allowing both a roomy interior and a quiet ride quality as air slips smoothly over the cabin's flush-mounted available acoustic glass and other drag- and turbulence-reducing design details.
The wheel-arch hems use a much smaller gap to the tire than on the RL - and also a much smaller gap than is typical for the segment. This results in a more poised, integrated and finished look for the RLX side profile. The wheel-arch hems are also beautifully finished, adding to the sense of quality. Likewise, the hood, door and trunk-panel gaps are carefully controlled, with the aggregate effect that the RLX is immensely well crafted.
Beneath the vehicle is a sophisticated series of aerodynamic aids that further smooth airflow. These include an engine undercover, left and right floor covers, left and right mid under covers, and a rear under cover.
The rear of the RLX body is also dynamic, and here the cabin is noticeably wider than either of the outgoing RL or the RLX's primary competitors, lending a look of soliditydue to the wider overall body and track widths.
Additional model-exclusive design cues for the RLX Sport Hybrid include a dark chrome-plated grill insert and redesigned lower front bumper fascia with integrated LED fog lights and turn signal indicators. The RLX Sport Hybrid has exclusive 19-inch, 10-spoke alloy wheels and "Hybrid" badging on the front fender. Also, SH-AWD badging replaces the P-AWS badge on the right rear portion of the trunk lid.
Seven different exterior colors, including four metallic and three pearl, are designed to complement the exterior shape and the way light defines it.
The Acura RLX Sport Hybrid utilizes numerous aluminum components to lower the overall vehicle mass by 76 pounds, which helps to improve acceleration, steering and handling response, road-holding, braking performance, fuel efficiency, emissions, and crash safety. Aluminum components include the front and rear bumper beams, front fenders, hood, steering column mounting beam, floor pan, and door skins.
Exterior Dimensions
The 2014 RLX Sport Hybrid is larger than the previous RL model in several key exterior dimensions, including width, wheelbase, and front and rear track. In overall length, the RLX measures 196.1 inches - just 0.2 inches longer than the previous model; however its wheelbase, at 112.2 inches, is a full two inches longer, providing more rear passenger room and improved the ride quality.
At 74.4 inches wide, the RLX is a substantial 1.8 inches wider than the previous model, contributing to the RLX's more spacious interior - now with an impressive 36.4 inches between seating rows - its more confident visual presence, and improved handling stability.
At 57.7 inches high, the RLX is just 0.4 inches taller than the model it replaces.
Among its competitive set, the new RLX is longer and wider than the Audi A6, BMW 5 Series, Lexus GS series, and Mercedes-Benz E-Class.
Waiting Status
When parked and locked, the folding exterior mirrors retract, the security alarm system is armed, and the RLX goes into standby mode, waiting for its owner to return. Then when the driver (in possession of the key fob) approaches the vehicle, it unlocks the driver's door (or all doors if so programmed). When the driver opens the door to be seated, the RLX adjusts the seat and steering column to the preset positions, actives the instrumentation and sets the other features such as climate-control and audio-system presents to match the driver.
Body Rigidity
Static and dynamic rigidity and rear lateral stiffness are all improved versus the RL and even compared to the RL-X with P-AWS. Static bending rigidity is up 53 percent and torsional rigidity is up 47 percent compared to the previous RL model (1 percent up from the RLX with P-AWS). In addition, rear lateral stiffness and the torsional rigidity of the rear upper damper mounting points are up 107 percent and 63 percent, respectively, compared to the previous RL (and up 25 percent and 12 percent when compared to the RLX with P-AWS).
High-Strength Steel
To increase stiffness and rigidity in key areas without increasing weight, 55 percent of the RLX body is made from high-strength steel, including the strategic use of ultra-high strength "hot stamped" 1500Mpa steel.
Aluminum Body Components
Extensive use of aluminum in key areas saves 76.1 pounds compared to traditional all-steel construction, providing high strength with light weight that directly benefits ride, handling, fuel efficiency, emissions reductions and safety. The biggest weight savings from a single component comes from the use of an aluminum hood, which saves 19.6 pounds compared to a steel hood. Aluminum body components include:
- Hood
- Front bumper beam
- Front fenders
- Floor tunnel bar
- Rear bumper beam
- Steering-column hangar beam
- Front door skin
- Rear door skin
The RLX doors are a hybrid construction utilizing aluminum outer panels for lighter weight and steel inner panels for stiffness and crash safety performance. Together, they provide for increased stiffness with a weight reduction of 24.3 pounds compared to all-steel doors.
The front doors are constructed of four parts, while the rear doors are constructed of five parts. The steel inner panel uses a special high-corrosion-protection zinc, aluminum and magnesium plating - 11 percent aluminum, 3 percent magnesium and 86 percent zinc - to assure that electrolytic corrosion does not occur between the two metals. This plating gives the steel inner panel 10 times the resistance of traditional zinc galvanized plating.
The outer aluminum skin and steel inside panels are joined with an Acura-first "curl forming" process for high-strength and durability.
Class-Leading Aerodynamics
More than 800 wind-tunnel tests were conducted to improve vehicle aerodynamics values. As a result, the new RLX will have class-leading lower coefficient of lift (CL) and lower coefficient of drag (Cd).
Sound Insulation
Engineers paid particular attention to reducing interior noise, an effort that extends to literally every aspect of the vehicle's design and engineering - from aerodynamics and powertrain engineering to insulators and the selection of finishing materials - all play a part in the RLX's improved interior quietness.
To achieve a premium level of interior quietness, the RLX receives an unprecedented amount of acoustic material in key areas. The list includes:
- Carpet back surface
- Inside front/rear door lining
- Inside A-pillars
- Inside C-pillars
- Roof area behind moonroof opening
- Floor sills
- Inside trunk lid
- Rear deck
- Rear bulkhead
- Rear wheel wells
Acoustic Door Glass
The RLX Sport Hybrid uses laminated, sound-insulating acoustic glass for all door glass, providing an extra measure of wind and road noise attenuation (same as RLX with P-AWS Technology and higher grades). The glass is 4.7mm thick and includes an acoustic membrane that helps attenuate frequencies above 1,600 Hz, resulting in an improvement of up to 14.7 dB over the previous model's 5mm thick tempered door glass.
Jewel Eye™ Headlights
The 2014 RLX Sport Hybrid features Acura Jewel Eye™ LED headlights, which utilize a dual-stacked array of high-intensity LED lamps to deliver outstanding light distribution, and class-leading distant irradiation performance and light characteristics with a wavelength close to the human eye's luminosity curve. With two rows of five "Jewel Eye" lights per headlight, the LED lights provide improved down the road visibility compared to HID and halogen headlights.
On each side of the RLX, the low beams consist of four LED lights, while the innermost high beams utilize a pair of larger LED lights. The daytime running light (DRL) function is shared by the low-beam lenses, with the eight individual lenses clearly and dramatically visible even in bright sunlight. Altogether, they create a dramatic and distinctive appearance with superior lighting capability.
Light distribution
Both the low and separate high beam LED headlights offer outstanding performance in all nighttime driving conditions, including highway, winding roads, intersections, and in inclement weather conditions. The result is that the driver can see further with uniformity, making high-speed nighttime driving easier and less fatiguing.
A summary of LED benefits include:
- Outstanding light distribution that surpasses competitors
- Excellent distant illumination performance
- Clear illumination of the road surface and white lines
- High visibility of the entire visible color spectrum (white, red, green, blue and yellow) compared to HID and halogen headlights
- Response time when switching between low and high beam is shortened
- Light congruity is improved between low and high beams
LED Taillights
The RLX Sport Hybrid taillights utilize periphery LED illumination that is both effective and highly distinctive. The taillight array consists of two semi-circular LED rings sweeping across the rear fender edges and the sides of the trunk lid. The light path combines functions of both the taillights and the side marker lights in one array. This LED array matches the "Jewel Eye" headlights for elegance and clearly distinguishes the RLX from every other vehicle on the road - even at a distance and especially at night. It also compliments the RLX body design.
LED taillight components include the LED assembly, a housing/reflector and inner and outer lenses. Uniform illumination is provided by a combination of light diffusion and the specially grained finish of both an inner lens and a reflecting surface. Inside the periphery LED taillight array is a separate lighting array consisting of the stoplights and turn signals. Backup lights are located on the trunk lid, inside the perimeter taillight array.
LED Fog Lights
LED fog lights present a smaller face than traditional fog lights, making them less susceptible to damage, while offering longer life, lower energy draw and more desirable color.
One-Touch Turn Signals
The RLX's one-touch turn signals provide increased convenience for the driver when making routine lane changes. With the one-touch turn signal system, a quick movement of the turn-signal lever (between 0.4 sec. and 1 sec.) provides three blinks of the turn signals - an ideal scenario for changing lanes. Holding the lever for 1 sec. or longer (past the "click point") provides continuous blinking, such as for signaling a turn or exiting a thoroughfare.
Retracting Mirrors
At the driver's preference, the RLX's door mirrors on some grades can be configured to automatically retract when the doors are locked, and then automatically extend when the doors are unlocked. This automatic mirror retract/extend function helps safeguard the mirrors when the RLX is parked, while also creating a higher-quality experience for the driver by eliminating the need to remember to manually retract or extend the mirrors.
The mirrors automatically retract or extend in two ways: 1) simply press the lock/unlock button on the remote key fob; or 2) press the lock button on the door handle.
The mirrors can also be retracted and extended by using the mirror switch on the driver's door panel. These functions can be customized through the MID on the instrument panel.
Expanded View Driver's Mirror
The 2014 RLX's Expanded View Driver's Mirror is integrated into the driver's side mirror. Standard equipment on all trim levels, the mirror increases the driver's field of vision by 6.5-degrees to provide a better view of objects that would otherwise be hidden in the vehicle's blind spot. This allows the driver to better recognize vehicles that are in their blind zone.
The major part of the mirror is flat and provides 15.1-degrees of visibility. Adding the 6.5-degrees of the Expanded View Driver's Mirror yields 21.6-degrees of visibility. In addition, the expansion of the view area gradually changes between flat and convex for a more natural user experience.
Intelligent Wipers
Laws in some states require drivers to turn on the headlights when the wipers are operating in the rain. The new RLX helps its driver comply with these laws by automatically illuminating the headlights when the wipers are activated in rainy conditions (with headlight switch in Auto). Operation is shown via an indicator on the instrument panel. If rain is intermittent, the lights stay on for a predetermined interval before automatically turning off again.
Wiper operation is equally advanced for maximum wiping area, better wiping quality, reduced weight, improved appearance and longer blade life. Details include:
- Wiper coverage is maximized by controlling the wiper position, including to the outer corners of the windshield.
- Wiper performance is maximized by adjusting the wiper speed according to road speed and wind pressure.
- The wiper motor uses a built-in ECU, reducing complexity compared to the RL wiper mechanism. The new RLX wiper motor assembly saves 4.6 pounds in comparison.
- For better appearance, the wipers are hidden under the hood when not in operation.
- For extended life of the wiper blades' rubber, the operating system periodically raises the wiper blades from underneath the hood (when not in use) to prevent blade deformation.
The RLX trunk has a self-opening feature that fully opens the trunk lid. There are three ways to open the trunk: 1) by pressing the trunk opener switch located on the driver side door panel, 2) with the key fob and 3) with the trunk opener switch located in the middle of the trunk, underneath the trunk lid garnish. This makes it easier for the RLX driver to carry items and open the trunk lid at the same time. In contrast, the previous RL model, the trunk lid would open halfway compared to the RLX's fully open function. The trunk lid closes manually.
Trunk Storage
The RLX Sport Hybrid offers 12.0 cu.-ft. of trunk storage capacity (down from 15.3 cu. ft. in the RLX with P-AWS and 15.1 cu.-ft. in RLX models with Krell Audio and Advance grades). All measurements include the tool kit and the puncture repair kit. A cargo net allows for storage of smaller items in an areas suspended above the cargo floor. Also, beneath the floor panel is a 0.4 cu.-ft. covered storage well.
Multi-Angle Rearview Camera
The RLX's standard multi-angle rearview camera features three viewing angles - Wide view, Normal view and Top Down view. Drivers may select the preferred view according to driving conditions. The rearview camera system also features dynamic guidelines that display the vehicle's backward trajectory according to steering-wheel position. When the steering wheel is straight, a broad 180-degree rearward view can be seen in Wide View, and Normal and Top Down views are also available. However when the steering wheel is turned 90 degrees, only Wide and Normal views are available, and dynamic guidelines curve onscreen to show the path of the vehicle. The result is improved convenience for the driver as the rearward trajectory of the RLX is indicated by the dynamic guidelines.
Rear Wheel Arch Hem
The RLX's sleek exterior design is enhanced by close tolerances between the tires and the wheel arches. Specially designed wheel-arch hems reduce the gap to just 46 mm between the top of the tire and the lower part of the wheel arch, 10.5-mm narrower than that of the previous RL model. As a result, the tires better fill the wheel wells for a greater sense of unity and substance.
Exterior Colors
The 2014 RLX Sport Hybrid is available in seven exterior colors, including four metallic and three pearl colors. All colors have a strong character, offering expressive contrasts that compliment the RLX's body-panel curves and angles, while also exhibiting a smart luxury appearance. The acid-resistant epoxy clear-coat paint is superior to typical clear-coat paints for increased resistance to urban pollutants.
Chassis Concept
The goal behind the RLX Sport Hybrid chassis was to deliver "the synergy between man and machine" or dynamic handling that truly responds to "the will of the driver." This refers to the way in which Acura engineers envisioned the entire package of the RLX responding instantaneously and precisely, with technology used to improve the driver's capability and confidence. The result is a vehicle that, more than any Acura before it, creates a driving experience that performs at the will of the driver.
Sport Mode
A driver-selectable Sport mode further enhances driving dynamics across a wide range of driving situations. When the driver engages the Sport button on the center console, the system adopts more aggressive shift mapping and rear wheel torque-vectoring control. The system also deactivates Idle Stop, Variable Cylinder Management (no 3-cylinder mode) and the Reactive Force Pedal, plus the Active Sound Control system is modified to provide an even sportier driving experience.
Front Aluminum Subframe
The RLX Sport Hybrid has a lightweight and rigid front aluminum front subframe that is specifically designed to support the high performance of the double wishbone, lower double-joint front suspension with Amplitude Reactive Dampers and belt-type Electric Power Steering (EPS) system. Using die cast front corners, the Acura RLX Sport Hybrid's front subframe is also wider across the middle, features wider middle and rear rails, and a wider rear section vs. RL to accommodate the new EPS system. Rigidity is up 82 percent compared to RL.
With its lightweight and rigidity, the new aluminum front subframe contributes to agile and light handling, straight-line stability, higher fuel efficiency, flat cornering and pleasing ride comfort, and smooth and precise steering feel (with reduced torque steer tendencies).
The RLX Sport Hybrid subframe is matched to the Active Control Engine Mount (ACM) system that is engineered specifically for the RLX's higher-output engine and Variable Cylinder Management (VCM) system.
Lower Double-Joint Front Suspension
The RLX Sport Hybrid utilizes the same double-wishbone, lower double-joint front suspension as the RLX with P-AWS, which significantly improves intuitive handling agility, driver confidence and security, and ride sophistication. The system includes a lower double joint with a split lower control arm, optimized kingpin geometry, upper control arm, hydraulic compliance bushing, special dual-stage Amplitude Reactive Dampers made for Acura by ZF-Sachs, and a stabilizer bar that is heat treated for high strength.
Benefits include:
- Agility - Improved steering feel characteristics including stability, linearity, response and tracing performance
- Driver Confidence - Increased high speed linearity with reduced torque steer/pulling, shimmy and judder
- Ride Sophistication - Flat ride with reduced harshness and steering vibration
Like the lower double-joint front suspension, the RLX Sport Hybrid's multi-link rear suspension with Amplitude Reactive Dampers provides optimal handling agility, driver confidence and ride sophistication. The multi-link system geometry is optimized for a flat ride during cornering, confident turning capability, and a sophisticated ride in a variety of urban, highway and open road scenarios. The system includes multi-link control arms, control-arm bushings that are optimized for the best blend of NVH isolation and handling precision, Amplitude Reactive Dampers, and a rear stabilizer bar that is hardened with a special shot-peening process.
Amplitude Reactive Dampers
Amplitude Reactive Dampers provide superior ride comfort and handling in all driving conditions. The dampers have two separate damping mechanisms: one that is tuned for maximum efficiency on smoother roads with small inputs; and the other that is tuned to handle large inputs such as rough roads, potholes, and sudden steering and braking action. The result is a vehicle that remains composed and comfortable in a wide range of driving conditions.
The core technology contained within the Amplitude Reactive Dampers is their two separate damping pistons, including a main piston and a second piston. To improve overall ride comfort, when smaller inputs occur during normal driving conditions, only the main piston works to provide the ideal damping characteristics. To improve the RLX's ride and handling during more severe conditions, the second piston operates to provide additional damping force.
The Amplitude Reactive Dampers are a purely mechanical system that does not require electronic controls. Altogether, they provide a much wider range of damping performance than the previous RL.
High-Output Electric Power Steering (EPS)
The RLX Sport Hybrid Electric Power Steering (EPS) system uses a high-power, belt-type electric steering assist. The system increases the torque available to assist the driver in steering the vehicle smoothly, with instantaneous response, direct feel, and improved low-speed agility and high-speed stability.
The variable gear ratio EPS uses a high-output electric assist motor with a belt-drive system. The system is designed and tuned to provide the two most essential characteristics in a high-performance luxury vehicle's steering. These include a smooth initial response (shorter delay) at the start of steering input, and greater linearity response (steering force camber increase) as input is increased. As a result, the RLX's high-output EPS provides agile performance in low-speed driving maneuvers such as at intersections, improved overall accuracy and road feel, and superb high-speed stability.
Rigid Steering Column
The RLX Sport Hybrid steering column is a highly rigid design with an aluminum bracket and resin angular bearing. The resulting stiffness gives maximum driver steering feedback along with minimizing vibration felt in the wheel.
The steering shaft is significantly larger in diameter than the shaft found in the previous RL, and together with the stiff but lightweight aluminum support bracket and angular bearing, yields maximum vibration-damping characteristics for a more luxurious driving experience.
Electrically actuated tilt and telescoping adjustment makes it easy to set the steering wheel to the ideal position for drivers of different sizes.
4-Wheel Disc Brakes with ABS and Brake Assist
RLX Sport Hybrid is equipped with 4-wheel disc brakes with a 4-channel anti-lock braking system (ABS) for confident stops. The front discs measure 12.99 inches in diameter, while the rear discs measure 12.2 inches in diameter.
ABS independently modulates braking power at each wheel to help the driver retain steering control during heavy braking, while Brake Assist recognizes emergency braking situations and almost instantly applies full braking force when appropriate.
The brake pads are a high-friction type for peak stopping performance even under strenuous conditions. The brake calipers are designed to reduce brake drag when not in use, reducing rolling resistance and improving fuel efficiency in the process.
Electric Servo Brakes
The RLX Sport Hybrid's electric servo brake system maximizes regenerative braking capability for improved fuel efficiency. The braking system is fully hydraulic from the master cylinder all the way to the 4-wheel disc brakes, just like a traditional braking system. The key difference is that the braking function is electronically controlled rather than a purely mechanical activation, allowing regenerative braking from the front and rear electric motors to slow the vehicle, rather than the hydraulic friction brakes, under most circumstances. Besides its payoff in efficiency, the system offers excellent feel and feedback for the driver through the brake pedal.
When the driver applies the brake pedal, a signal is sent to the vehicle's Electronic Control Unit (ECU), which determines the appropriate amount of braking force to assign to regenerative braking through the electric drive motor and to the hydraulic friction braking system. In many cases, friction braking is not needed until the vehicle speed drops below 9 mph, as the vehicle slows to a final stop. When the ECU determines that friction braking is needed, the dual hydraulic master cylinder pumps brake fluid through the system. Midway between the master cylinder and the calipers is a separate motorized electronic actuator. This actuator receives an electronic signal, generated in the master cylinder module that precisely defines how the driver has applied the brakes - soft or hard, slow or fast. The actuator then directly apportions hydraulic pressure to the brake calipers at each wheel.
While the RLX with P-AWS uses a 10-inch vacuum booster to assist the driver in applying needed brake pressure, the RLX Sport Hybrid uses an electric servo brake actuator.
Reactive Force Pedal
The RLX Sport Hybrid is the first model to apply the Acura-developed Reactive Force Pedal technology. In Normal mode, the system measures vehicle speed and dynamically varies pedal force to help the driver in applying the optimal amount of throttle for both spirited performance and good fuel economy. In slippery conditions, the system can also help the driver apply the optimal amount of driving force while minimizing wheel slip, utilizing input from the Vehicle Stability Assist system. Further, in the event that the Collision Mitigation Brake System (CMBS) detects that a frontal collision is imminent, the Reactive Force Pedal will push back on the driver's foot even before the CMBS system activates its visual and auditory alerts.
Electric Parking Brake + Automatic Brake Hold
The combination of Electric Parking Brake (EPB) and Automatic Brake Hold are a first for the Acura division. Together, they meaningfully reduce the effort of driving the vehicle, thereby raising overall comfort to a true flagship level.
Electric Parking Brake
The Electric Parking Brake (EPB) on the RLX Sport Hybrid makes using the parking brake easier and more comfortable. Actuating the parking brake is now as simple as pulling a button on the center console. To release the parking brake, the driver simply presses on the accelerator pedal. In addition to being simpler, more convenient and more comfortable to use than a traditional parking brake, the new Electric Parking Brake makes hill starts easier when the RLX is parked on a grade.
The ease of use also promotes the use of the parking brake. Further, since only a few competitive vehicles have an Electric Parking Brake (EPB) system, its inclusion in the RLX further defines the new Acura as a true flagship. As with a traditional manually activated parking brake, EPB functions on the rear wheels only.
Automatic Brake Hold
The Acura RLX Sport Hybrid also features Automatic Brake Hold, which retains brake pressure when the vehicle is stopped, simplifying driving in heavy traffic or hills. This frees the driver from continually pressing the brake pedal to maintain the vehicle in a stopped position, a significant improvement in driving enjoyment in difficult conditions.
Operating the system requires two simple actions from the driver:
- Activating/deactivating the system via a switch on the center console.
- Pressing on the brake pedal when the vehicle comes to a stop.
Vehicle Stability Assist™ (VSA®)
The RLX Sport Hybrid's high-efficiency Vehicle Stability Assist™ (VSA) works in conjunction with the ABS and the Drive-by-Wire throttle systems. This premium VSA system enhances vehicle stability when cornering. If vehicle understeer or oversteer is detected, the system selectively reduces power and/or applies braking force to individual wheels to help correct the condition and stabilize the vehicle.
Traction control monitors front-wheel slippage, such as when starting on slick surfaces or patches of ice. If it is detected, traction control activates one or more brake calipers and reduces engine torque to slow the spinning wheel so it can regain traction.
Agile Handling Assist
Agile Handling Assist works in near limit cornering by using the brakes to create a yaw moment, helping the driver smoothly and easily trace the desired line with smaller steering-wheel inputs. The result is improved dynamic performance in all driving conditions, helping the RLX Sport Hybrid perform at the will of the driver.
Tire Pressure Monitoring System (TPMS)
A standard Tire Pressure Monitoring System (TPMS) helps the driver maintain proper air pressure to improve driving safety and fuel efficiency, as well as reduce wear and tear on the vehicle's tires. Located in the instrument panel, a TPMS icon illuminates to alert the driver whenever any of the tires has a significantly low-pressure reading that requires the driver's attention.
Noise-Reducing Wheels
The RLX Sport Hybrid features model-exclusive10-spoke, 19x8J alloy wheels with a painted Glitter Silver Metallic finish. The RLX Sport Hybrid's wheels have a special noise-reducing design that lowers noise by as much as 7 dB in the mid-frequency range. The key elements of the noise-reducing four resin moldings fitted on the inside of the wheel rim. The result is reduced noise resonance in the air column inside the wheel.
All-Season Tires
The RLX Sport Hybrid is shod with 245/40R19 M+S tires. The RLX features an easy-to-use tire repair kit in lieu of a spare tire. This reduces weight and increases trunk volume, and simplifies temporary repairs in the event of a flat tire.
Capless Fueling System
The RLX's capless fueling eliminates the fuel cap, meaning that fueling the vehicle now simply requires opening the fuel-tank lid, refueling, and then closing the lid. This reduces the possibility of damaging the vehicle's paint with the fuel cap or tether, or forgetting the fuel cap at the gas station. The system also allows the use of a smaller fuel-cap door, which cleans up the lines of the vehicle.
The system consists of two integrated components, including an outer shutter mechanism that prevents the intrusion of dirt and dust, and a self-sealing fueling flap that is closed by a torsion spring. Both operate automatically.
At a gas station, the driver simply opens the fuel lid (which automatically locks with the doors) and then inserts the fuel nozzle. Inserting the nozzle automatically opens the outer shutter and fueling flap. When fueling is complete, removing the fuel nozzle automatically closes both the fueling flap and outer shutter.
15.1-Gallon Fuel Capacity
The RLX Sport Hybrid's resin fuel tank capacity of 15.1 gallons gives the RLX an ample cruising range. Both the fuel tank and fuel pipe are made of high-impact resin for lightweight and durability. The fuel tank is located in a protected area in front of the rear suspension.
INTERIOR
The 2014 RLX Sport Hybrid interior serves as a "gracious host" for the driver and passengers, combining highly spacious five-passenger comfort with a higher level of luxury convenience and technology in an Acura flagship sedan. In the front seat area, a design concept called "dual personal structure" divides the space into areas centered on the driver and front passenger, complemented by a wide center stack and console that is easily accessible to each person. High-end premium elements, such as a carefully stitched leather instrument panel cover, soft-touch materials, premium finishes, and rich wood-grain accents, combine with an intuitive new control layout to create a distinctive environment in tune with this luxury performance sedan's sporting character.
Open the door with the standard Smart Entry system and you'll find more shoulder room, front and rear. Rear seat leg room has been increased a substantial 2.5-inches, moving the RLX to the head of its class in tandem seating distance. Heated 12-way adjustable (8-way power plus 4-way power lumbar support) front seats are standard, and offer all-day comfort along with abundant lateral support for aggressive cornering. Ventilated front seats and heated rear seats are standard in the Advance grade. Rich, luxurious perforated and stain-resistant Milano leather seating is also standard.
Standard tri-zone climate control ensures passenger comfort throughout the cabin. All grades have a large center console that offers 5.8 liters of storage space, and features a padded armrest lid that slides fore and aft for greater comfort. The dual-hinged lid can be opened to the left or right, making access simple for either the driver or front-seat passenger. The glove box has a new electric release, and along with the audio, navigation and phone systems, can be easily locked via the touch screen - for situations where additional security is warranted, such as when RLX is given to a valet for parking.
With the expanded range of standard and available technology features, substantial engineering effort was put into making each feature intuitive and easy to use. The focal point of the new instrument panel is a large 8-inch color audio/information screen that provides a range of useful information and access to an array of customizable features. When equipped with a navigation system, a high-resolution screen positioned in this same location combines audio, information and navigation functions.
A 7-inch On-Demand Multi-Use Display™ positioned within easy reach of the driver and front passenger controls the audio system and many other features. The touchscreen eliminates many physical buttons, and is the key contributor to the clean, uncluttered look of the RLX interior. Dynamic menus clearly display controls for each functional mode, reduce screen clutter, and help make operation simple. Audible and touch feedback improves usability and control, and helps keep the driver's eyes on the road. Customizable shortcuts allow the RLX driver to set easy-to-access pre-sets for Places, Phone, Climate, Audio, and Valet functional categories.
Befitting its flagship status in the Acura line, the RLX Sport Hybrid does not scrimp on thoughtful premium details. A power tilt/telescoping steering wheel with enhanced fingertip controls and a multi-view rearview camera are standard. Also standard are a two-driver memory system, auto-dimming rearview mirror, HomeLink®, Forward Collision Warning (FCW) and Lane Departure Warning (LDW). To deliver excellent sound isolation, the RLX makes use of comprehensive sound deadening materials, an acoustic glass windshield, and an Active Sound Control system that helps cancel out interior noise. Acura Bluetooth® HandsFreeLink® wireless telephone connectivity is also standard, and allows the RLX driver to dial a Bluetooth®-enabled mobile phone by voice command.
Acura is known for its leadership in the adoption of advanced information and media technologies, and the 2014 RLX Sport Hybrid is no exception. The next generation of AcuraLink® delivers a broad spectrum of capabilities using both an embedded two-way cellular communication and cloud-based connectivity via the owner's compatible smart phone and data plan. AcuraLink features Pandora® interface, Aha™ by Harman cloud-based interface, and SMS text and e-mail messaging functionality with compatible cell phones.
The Pandora® interface allows custom internet radio stations to be played through the Acura RLX Sport Hybrid's audio system via a connected compatible smart phone. Aha also uses a paired smart phone to provide hundreds of channels of in-vehicle content, including custom internet radio, podcasts, audio books, Facebook and Twitter newsfeeds. AcuraLink services are offered in three tiers: Standard, Connect and Premium
Two audio systems are offered in the RLX Sport Hybrid starting with an impressive 14-speaker Acura/ELS® Studio Premium Audio System in the RLX Sport Hybrid Technology grade. The RLX Sport Hybrid Advance grade features a 14-speaker Krell ultra-premium audio system — with speakers and amplifiers engineered over the last four years — sets a new benchmark in automotive audio performance.
The RLX Sport Hybrid offers a wide spectrum of audio and information features. All audio systems feature AM/FM, HD radio and XM radio®. The standard USB port allows the connection of a flash drive, iPhone or iPod. Compatible Bluetooth® devices can also connect to the RLX wirelessly. When equipped with a navigation system, CDs can be copied onto the on-board hard drive and selected using Song-by-Voice.
The standard Acura Navigation System with Voice Recognition™ is a hard-drive based system. It features continuously updated traffic maps, including highways and, for the first time, surface street traffic information within the United States and Canada, and also offers traffic rerouting to help navigate around slow-downs. The system includes Zagat® restaurant information.
The navigation system's voice recognition feature allows you to perform the most frequently used functions of the audio, climate control, and navigation systems without taking your hands off the wheel. The advanced voice recognition technology responds to over 1,500 commands, in addition to spoken street names.
A broad spectrum of driver-assistive technologies is also offered on the RLX Sport Hybrid. Forward Collision Warning (FCW) and Lane Departure Warning (LDW) and Blind Spot Information (BSI) system are standard. The RLX Sport Hybrid with Advance package adds standard Adaptive Cruise Control (ACC) with Low-Speed Follow, Lane Keeping Assist System, and front and rear parking sensors.
Design and Materials
The new RLX Sport Hybrid interior is a fresh take on premium luxury, with clean and elegant lines, high-end detailing, and intuitive functionality. A design concept called "dual personal structure" guided development, and divides the space into areas centered on the driver and front passenger, complemented by a wide center stack and console that is easily accessible to each person.
With more on-board electronic features than ever before, the RLX designers rethought the user interface of the central stack, and developed a simple two-screen system. The 8-inch color audio/information screen is placed high in the instrument panel, where it's close to the driver's sight line. The lower, 7-inch touch screen eliminates the need for dozens of hard keys, and has contextual menus that make operation simple. The quality of interior materials, fit and finish have received close attention to reflect the discerning nature of the RLX owner, with stitched leather instrument panel detailing, available Milano leather seating, and soft-touch materials throughout.
Driver-Oriented Cockpit
Intuitive functionality has always been a priority in Acura design and is now a core element of Acura's focus on creating the synergy between man and machine - enabling the driver to focus on operating the vehicle rather than various controls. All important systems and controls are within easy reach of the driver. Controls for the systems used most frequently—audio, cruise control, Bluetooth® HandsFreeLink®, available satellite-linked Acura Navigation System with Voice Recognition™ and Multi-Information Display—are conveniently positioned on the steering wheel. The main instrumentation is an easy-to-read analog design, supplemented with digital and graphic displays. Even though the RLX gives its driver access to many electronic features, the interface is simple and welcoming. Sight lines are clear with important items placed within easy view.
Typical of Acura interior design, the soft-touch switchgear of the RLX is engineered to deliver a quality feel and positive action. Helpful features, such as power side mirrors that can be set to automatically tilt-down when Reverse gear is engaged, make parking easier. A standard multi-view rearview camera provides a choice of three different views, displayed on the bright, colorful 8-inch audio/information screen.
Leather-Wrapped Steering Wheel
The leather-wrapped steering wheel with euro-style stitching incorporates the most commonly used controls, allowing the driver to keep their hands on the wheel. Phone and audio controls are on the left side; cruise control and multi-info display controls are on the right side, along with the switches for Lane Keeping Assist System (LKAS) and Adaptive Cruise Control with Low-Speed Follow on the Advance grade.
Tucked out of view but within fingertip reach are a pair of paddle shifters that allow for manual operation of the Sequential SportShift 6-speed automatic transmission.
Instrumentation
The RLX Sport Hybrid has sophisticated analog instrumentation with large tachometer and speedometer flanking a Multi-Information Display (MID) which provides a range of information and trip computer functions. The tachometer and speedometer are flanked by an analog coolant temperature and fuel level gauge.
Head-Up Display
The Acura RLX Sport Hybrid features the first application of Acura's new Head-Up Display, which utilizes a concave mirror located behind the instrument panel to project a broad range of information on the lower portion of the windshield directly in front of the driver.
Display modes can be selected by a steering wheel-mounted thumb dial. Display modes include:
- Sport Hybrid SH-AWD system operation - displays the condition of each tire torque vectoring.
- Tachometer - displays engine rpm, gear position and vehicle speed.
- Navigation - turn-by-turn driving instructions are displayed in a birds-eye style format, accompanied by voice commands, along with vehicle speed.
- Compass - indicates the direction of travel
- ACC/LKAS - ACC: Recognition of the vehicle ahead LKAS: Lane markings
- Speed only - displays vehicle speed
- ACC/LKAS warnings - in the event of an unintentional lane departure (Lane Keep Assist) or impending collision (Collision Mitigation Brake System) the display will interrupt the selected mode to display the appropriate visual and audible warnings.
- Additional automatic display content includes audio, speed-dial information and Voice Recognition
Multi-Information Display
A highly functional instrument panel gives the RLX driver instant access to critical information. It also provides important vehicle information via a Multi-Information Display (MID) positioned between the tachometer and speedometer. Controls positioned on the right side of the steering wheel allow the driver to cycle the MID display through multiple screens of information from sources including LKAS and ACC and more. The Maintenance Minder™ system alerts the RLX driver of upcoming maintenance needs via the MID and should a fault occur with the vehicle, specific warning information will appear.
MID information categories include:
- Digital odometer and dual digital trip meters
- Average fuel economy
- Estimated remaining fuel range
- Elapsed time
- Average speed
- Maintenance Minder™
- Tire pressure monitoring system (TPMS)
- Vehicle Settings customization
- Engine oil life
- Outside temperature
- Instant fuel economy
- Shift lever position
- Adaptive Cruise Control (ACC) with Low-Speed Follow
- Lane Keeping Assist System (LKAS)
- Turn-by-turn navigation (with Navigation package and up)
All RLX models feature a bright, full-color 8-inch audio/information screen positioned high in the center stack of the instrument panel. Its high placement puts it close to the driver's line of sight where it's easy to see. Besides audio system information, the screen also offers backup camera views and access to a range of customizable features.
On-Demand Multi-Use Display™
The impressive range of technology offered in the RLX presented designers with a challenge of balancing capability with simplicity. The solution came in the form of a 7-inch On Demand Multi-Use Display™ (ODMD) touch screen positioned within easy reach of the driver and front passenger. The touchscreen controls a wide range of features, and with its contextual menus, it displays relevant items while minimizing clutter. To make it easy to use, the screen offers audible and vibratory touch feedback—both can be adjusted or shut off based on the owner's preference. Customizable shortcuts allow the RLX driver to set easy-to-access presets for Places, Phone, Climate, Audio and Valet functional categories.
The touchscreen display also provides access to the RLX's Valet Mode. Using the touch screen, the owner can assign a Personal Identification Number (PIN) that locks out the use of the trunk release and glove box, navigation system, audio system and phone.
Multi-Angle Rearview Camera
A multi-view rearview camera is standard on all grades. It offers three viewing angles (wide view, normal view and top view). Drivers may select the preferred view according to driving conditions. The rearview image is displayed on the 8-inch color audio/information display, or on the navigation system display (in the same location) on models equipped with navigation. On-screen guidelines help the driver better judge distances, and predictive guidelines help make maneuvering in reverse easier.
One-Touch Turn Signals
The RLX's one-touch turn signals provide increased convenience for the driver when making routine lane changes. In addition to normal operation, a quick movement of the turn signal lever (between 0.4 sec. and 1.0 sec.) will cause the turn signals to flash three times.
Seating
Considering the luxury mission and performance capabilities of the RLX, its seating required extensive engineering development. Detailed analysis of seats from competitive makes helped set engineering targets that balanced firm support, a feeling of secure stability when maneuvering, and the supple comfort required for all-day driving.
An all-new internal structure (introduced in the RLX) lays the foundation for comfort. Specially compounded padding in four different densities is used strategically to blend support and comfort, with special firm inset pads positioned internally in the side bolsters for stable lateral support. Special attention was given to the Milano leather seat coverings to make for a soft touch, with the right amount of surface friction to help keep passengers securely in position while cornering.
The driver and passenger front seats feature 12-ways of power adjustability (8-way power seat plus 4-way power lumbar support). The pneumatic lumbar support can be adjusted both longitudinally and vertically. All driver's seat power adjustments are included in the Smart Entry system that (among many other features). The system stores a pair of user profiles regarding seat settings—one for each of the two key fobs that come standard with the RLX Sport Hybrid.
Heated front seats are standard in the RLX Sport Hybrid. Electronic control allows for three temperature settings, along with faster warm-up and smoother, more precise temperature control. Ventilated front seats and heated rear seats are standard in the Advance grade.
The RLX offers rear seat occupants exceptional comfort and room. Specially sculpted front seat seatbacks generate extra leg room for rear seat passengers. In the rear seat area, the outer seating positions are carefully engineered (complete with side bolsters) to simultaneously combine solid lateral support with luxurious comfort on long trips.
Interior Lighting
The RLX theme of efficient driver control and easy-to-read components carries on after dark. The analog instruments are backlit with LED lighting and feature high-contrast markings. The gauge package progressively illuminates to give the driver a welcoming feel upon entry. When the door is first opened, the instrument lighting comes to life and then brightens progressively to 100-percent illumination when the ignition is switched on. The illuminated instrument panels then come alive, indicating that the car is ready to go. At the end of the drive, the instrument lighting dims progressively.
All the interior switches and vent controls are illuminated to make them easy to locate at night, including the switches on all four doors and the steering wheel. In addition to front and rear overhead interior lights and map lights, the RLX also has a complement of low-level interior cabin lighting. Ambient lighting in the ceiling illuminates the front center console and the rear flip-down armrest. The front foot wells also have ambient lighting that brightens substantially when the doors are opened.
Front and rear interior door handle areas are illuminated to make them easy to find at night, and the front door storage compartments, glove compartment, and center armrest compartment are all internally illuminated. All four doors have courtesy lights that illuminate when the doors are open. The RLX interior lights feature "theater dimming," which can be set by the driver to one of several dimming rates via the Multi-Information Display. The trunk has interior lighting, plus the trunk lid has lighting that illuminates the bumper and sill area when the lid is opened.
Interior Convenience
The RLX Sport Hybrid interior offers a range of storage and convenience features for the driver and passengers. The dual-hinged front center armrest incorporates a unique lid design that can flip open to the right or left, for conveniently accessing the center console storage compartment.
A USB port inside the console allows for easy connectivity of items such as an iPod®, iPhone® or a removable flash drive storage device. The USB port is located alongside a traditional AUX jack that allows connectivity of an MP3 music player. Just ahead of the console, a pair of illuminated cupholders is conveniently positioned.
Inside the glove compartment is a separate document box to accommodate the Owner's Manual as well as important registration and insurance papers. The separate document box arrangement not only keeps paperwork neatly contained, but it also frees up storage space in the main glove box compartment. In the rear seating area, a wide fold-down center armrest has a padded top. A pullout dual beverage holder is built into the rear armrest.
Cargo Carrying Versatility
The RLX Sport Hybrid has a fully finished, 12.0 cubic-foot trunk (compared to 15.1 on the two-wheel drive RLX with Krell Audio and Advance packages). An underfloor storage compartment provides added space for small items. The acoustic properties of the trunk and the rear deck speakers were specially engineered to create the best possible sound performance from the three available audio systems. To allow room for longer items, a locking trunk pass-through is provided. A cargo net with a network of anchor points help keeps trunk cargo securely in position.
For a cleaner appearance and to avoid damage to luggage, the trunk lid is supported by fully concealed hinge mechanisms. The trunk can be opened via a remote release mounted on the driver's door panel, by pulling the exterior release lever on the trunk lid (when carrying the Smart Entry keyless access fob), or with a manual release accessible through the locking trunk pass-through. There is also an emergency trunk opener, located near the trunk latch that can be found in total darkness thanks to a glow-in-the-dark yellow color treatment.
GPS-Linked, Tri-Zone Automatic Climate Control
The RLX Sport Hybrid has GPS-linked temperature control, tri-zone automatic climate control system that lets the driver, front passenger and rear passengers set temperatures to their individual liking. Designed for exceptionally quiet operation the system also includes a selectable automatic recirculation mode that is controlled by an electronic control unit (ECU) and an air quality sensor.
To operate the HVAC system, easy-to-read buttons and controls are positioned within easy reach. The HVAC system can also be controlled by voice command, and additional custom settings can be accessed through the 7-inch On-Demand Multi-Use Display™ interface. The climate control system's control logic is designed to provide smooth operation with subtle changes in airflow.
With its position-sensing ability, the available GPS navigation system contributes to overall passenger comfort with a 3D solar sensing feature. Based on continuously updated vehicle position information, the navigation system determines the position of the sun relative to the driver and passenger. Combining this information with input from a solar sensor located on top of the instrument panel, the climate control system automatically adjusts the temperature and airflow from side to side as needed to compensate for asymmetrical solar heating.
Rear Sunshades
For increased rear seat privacy, reduced solar loading and greater passenger comfort on sunny days, the Advance grade RLX Sport Hybrid has a power operated rear-window sunshade along with manually operated expanded sunshades for each rear door side window.
Active Noise Control (ANC) and Active Sound Control (ASC)
Key contributors to the RLX Sport Hybrid's quiet, refined interior are Active Noise Control (ANC) and Active Sound Control (ASC). The two systems are comprised of dual overhead microphones, an ANC/ASC electronic processor, and the audio system's speakers. ASC/ANC operates whenever the RLX engine is running, even if the audio system is turned off.
ANC is designed to reduce low frequency sound in the cabin caused mainly by the roughness of the road surface. The overhead microphones pick up sound waves and send them to the ANC/ASC processor, which creates and sends a precisely timed "reverse phase" audio signal to a special amplifier. In turn, the amplifier drives the door speakers to cancel the original noise signal.
ASC is a related technology designed to improve the engine sound quality by making the sound pressure level more linear as the engine revs increase. Typically, engine noise doesn't increase in a linear way with rising revs; instead there can be many resonances that create peaks and valleys in the sound pressure level and an uneven sound. ASC helps smooth out the engine sound by creating a same-phase or reverse-phase sound signal as needed and sending it to the speakers. Though the system offers benefits from idle to redline, it makes the largest difference in the range between 1000 and 2000 rpm, where it lowers the sound pressure level with a reverse-phase audio signal.
AcuraLink® Connectivity System
The RLX launched the next generation of AcuraLink®, Acura's cloud-based connected car system that first launched in 2005. This new generation uses embedded cellular technology built into the RLX and RLX Sport Hybrid, along with the owner's compatible smartphone and data package, to bring a broad range of convenience, media and available security features to the RLX lineup.
AcuraLink is the new center point for owners for hands-free access to cloud-based services, audio and information, and is designed to keep RLX drivers informed and connected while on the go. AcuraLink is available on both the RLX Sport Hybrid and RLX Sport Hybrid with Advance.
The connectivity required for AcuraLink's various features is distributed between the RLX's embedded system (for some of the fee-based features) and the owner's compatible smartphone and data package (for free features).
AcuraLink works with the owner's compatible smartphone and data package to connect the RLX with music and information resources, internet apps, and more. Aha™ by Harman is a key AcuraLink resource. Aha organizes the RLX owner's favorite content from the web into personalized on-demand radio stations in the vehicle. Aha is a comprehensive, cloud-based platform optimized for the automotive environment that provides a simple integration point for AcuraLink equipped vehicles to bring in a wide range of current and future applications into the audio system head unit. This new capability allows users to access their favorite podcasts, internet and terrestrial radio, on-demand music, restaurant recommendations via Yelp, and even audio updates from Facebook and Twitter.
Owners can use the AcuraLink website to access information or change preferences. AcuraLink allows for Twitter and Facebook access.
SMS Text Message Function
All RLX models have a standard SMS Text Message function that can read incoming texts aloud over the audio system, and allow the driver to reply with any of six factory preset messages. The system works with SMS-capable cell phones that have an active data plan and the Message Access Profile (MAP), such as the Blackberry, Droid X and others. When running iOS6, an iPhone can receive text messages, but cannot send replies using the RLX interface.
Once a compatible phone is paired with the RLX's Bluetooth® HandsFreeLink® system, the text messaging function is enabled. When the phone receives a text message, an alert appears on the audio/information screen (or navigation screen in vehicles equipped with navigation). Using the audio system controls, the driver can choose to have the message read aloud, can select among the preset reply choices, or can call the sender - all without handling their phone. To help minimize driver distraction, the text of the incoming message is not displayed on-screen while the vehicle is moving.
Available factory preset text replies:
- Talk to you later, I'm driving
- I'm on my way
- I'm running late
- OK
- Yes
- No
Like all Acura vehicles, the RLX Sport Hybrid has a standard Bluetooth® HandsFreeLink® hands free telephone interface that is designed to work with most Bluetooth®-enabled mobile phones. Bluetooth® is a radio frequency-based technology that allows portable devices (such as mobile cellular telephones, PDAs, and laptop computers) to communicate wirelessly. The RLX's HandsFreeLink® system is compatible with Bluetooth®-enabled cellular phones that have the Hands Free Profile (HFP). After the driver completes a one-time pairing process, the RLX can communicate wirelessly and securely with the driver's cell phone when it is within approximately 10 feet of the car. The phone needs to be on, but can be stored in a pocket, briefcase, purse, or anywhere inside the RLX cabin— thus there is no need to worry about where to place the cellular telephone.
Bluetooth® HandsFreeLink® allows the driver to send or answer telephone calls without removing their hands from the steering wheel. When a call comes in, the number of the incoming caller is displayed on the Multi-Information Display (MID) located in the instrument cluster. In addition, the phone ring tone is played over the audio system. If the driver chooses to answer the phone call, a press of the steering wheel-mounted "Pick up" button mutes the audio system and the incoming caller is heard over the RLX's audio system speakers. Working with an overhead array microphone, the HandsFreeLink® system helps cancel "echo effect" and reduces background noise to improve the transmission quality of the driver's speech.
To send a call hands-free, the RLX driver can dial the number by voice, again using fingertip controls mounted on the steering wheel to activate the system. The driver also can store frequently called numbers in the system's memory using unique voice tags. Up to six different compatible mobile phones can be registered with the RLX's Bluetooth® HandsFreeLink® system.
Acura/ELS Studio® 14-Speaker Premium Audio
The RLX Sport Hybrid Technology grade features the Acura/ELS Studio® Premium Audio System, engineered specifically for the RLX by Panasonic and legendary recording engineer Elliot Scheiner to recreate the emotional experience you feel when you enjoy a live performance. The system's hardware matches the quality of recording studio equipment, and features high power amplification and advanced speaker technology. It includes a single-disc CD player, AM/FM/HD/XM/HDD and delivers detailed, well-balanced sound to all seating positions
The system's 14 speakers are precisely located throughout the RLX cabin. Six titanium-domed tweeters are arrayed in the interiors; two near the A-pillars, two in the rear doors, and two more on the rear deck. A 3.1-inch super dynamic range speaker is centered in the top of the instrument panel, and six big 6.7-inch super-dynamic range speakers are placed in the door and on the rear deck. Finally, an 8-inch SLDD (Super Low Distortion Driver) subwoofer is position in the center of the rear deck.
In addition to traditional source inputs, the RLX is fitted with a USB port that allows for easy connectivity to items such as an iPod® or iPhone® along with a removable flash drive storage device containing WMA, MP3 or AAC format music. The USB port is located alongside a traditional AUX jack (that allows connectivity of an external MP3 music player) located in the center console's storage compartment.
Krell 14-Speaker Ultra-Premium Audio System
The Acura RLX Sport Hybrid with Advance features a Krell audio system that is designed to set a new standard in automotive audio performance. Krell is one of the most highly respected names in high-end audio, with a three-decade history of developing ultra-premium home audio systems. Though the new RLX system marks Krell's first production automotive application, it shares the performance goals of all Krell systems: Musical detail, three-dimensional sound presentation, and extreme volume capability. Four years of development went into the RLX 14-speaker system.
The 14 Krell speakers are positioned in the RLX cabin in the same locations as those in the Technology package. Six magnesium-domed tweeters are arrayed in the interior; two near the A-pillars, two more in the rear doors, and another pair on the rear deck. A 3.1-inch speaker is centered in the top of the instrument panel, and six large 6.7-inch Zylon® (Zylon® is a registered trade mark of Toyobo Co., Ltd. in Japan) speakers are placed in the doors and on the rear deck. Finally, an 8-inch subwoofer is positioned in the center of the rear deck.
Krell uses highly advanced speaker technology to achieve a new level of audio performance. The tweeters, for example, use magnesium diaphragms. Reproducing high frequencies requires that the tweeter diaphragm be able to move extremely fast, so ideally the diaphragm should be constructed of materials with very low mass. Aluminum is lightweight, fairly rigid, and inexpensive, but an aluminum diaphragm structure has a strong inherent resonance of around 20 kHz. This resonance is often perceived as a harsh or gritty sound. Magnesium is more expensive than aluminum, but it has the benefit of being less mass. Adding a structural ridge to the diaphragm greatly increases rigidity without additional mass. This pushes the diaphragm's resonant frequency up into the inaudible 40 kHz range. The result is extraordinary detail and extended high frequencies without any trace of harshness.
Special technology is also applied to the Krell system's six 6.7-inch speakers. The speakers use diaphragms constructed of a material called Zylon®, the world's strongest super-fiber. This very rigid material is ideal for speaker manufacturing. Zylon® responds very quickly to musical input and, more importantly, stops moving just as quickly when the musical signal stops. Compared to the polypropylene diaphragm material that is used in the vast majority of car audio speakers, Zylon® has far less unwanted vibration, resulting in a much cleaner and more detailed sound.
Because of the ability of the magnesium tweeters and Zylon® speakers to reveal fine details in the music, the highest quality crossover components were required. Heavy gauge, pure copper inductors and top-of-the-line polypropylene capacitors from Bennic maintain perfect signal integrity.
The discrete amplifier channels are designed exactly like the channels in a high-end Krell home amplifier. The main channels feature the same robust, high quality bipolar power transistors used in flagship Krell home amplifiers. The result is an amplifier that has one-third less distortion than amplifiers found in competing flagship luxury sedans. Using a class D channel for the subwoofer increases that amplifier's efficiency and reduces its size. The DirectFET class D amp is designed for low EMI (electro-magnetic interference) to keep the main output channels as noise-free as possible.
For the best audio performance, the Krell system uses metal speaker grilles. Because metal is inherently stronger than the plastic used for most grilles, the grilles can have a more open area without compromising strength. Metal grilles also vibrate less than typical plastic grilles.
Special care went into mounting the speakers with mounting plates that are thick and heavily reinforced. In combination with the specially engineered door panels, the mounting plates provide an extraordinarily rigid, stable mounting surface for each speaker element. Sound energy that would otherwise be wasted in the drive-unit or door vibration is accurately transmitted to the listener, resulting in tighter bass response and improved musical detail.
XM® Radio
XM® Radio is a standard feature within the RLX audio system and it provides more than 200 channels of digital programming with near CD-quality sound. The XM® signal is beamed to two broadcast satellites positioned in geostationary orbit above Earth. The beams from these two broadcast satellites combine to span the entire continental United States and some of Canada.
XM® Radio programming includes channels devoted to music, sports, talk, traffic, weather, children's programming and entertainment. Of the more than 200 XM® channels, 71 are commercial-free. When the RLX's audio system plays XM® Radio, the Audio/Information screen (or navigation display in vehicles with navigation) displays the current category, station song title, or artist's name, while the current category and station are also displayed on the On-Demand Multi-Use Display™. A complimentary three-month subscription to the XM® Radio service is included with purchase of a new RLX, and customers are able to continue the service or cancel any time afterwards.
HD Radio™
All RLX models feature standard HD Radio™. HD Radio technology converts the traditional analog radio broadcast to digital and provides advanced audio and data features that enhance the listening experience. Sound quality is radically improved, and unlike satellite radio, HD Radio is free.
Instead of sending out one analog signal, HD stations send out a bundled signal - both analog and digital. Because it is digital, textual data such as traffic, stock info and song titles can be sent out, as well. Unlike conventional radio, HD Radio stations broadcast extra channels, which are called HD2/HD3. These added channels offer RLX owners a universe of additional choices.
Hard Disk Drive (HDD) Audio
Hard Disk Drive (HDD) audio system featuring the 15GB HDD-based memory are programmed from the factory to copy music tracks from pre-recorded CDs, enabling customers to store many CDs worth of music on-board for easy access. The system will not copy music from burned CDs or from USB flash drives. Based on music files measuring an average size of 4.2MB per song at a 128kbps bit rate, approximately 3,500 songs can be loaded into the 15GB system (approximately 175 CDs).
The HDD-based system records music at 6-times that of the original music track time. Two recording quality settings (192 kbps or 128 kbps) are available. The automatic-recording default setting can be changed to manual if desired.
The audio system can display information about the music tracks, such as artist names and song titles using the Gracenote® database in the system software. This database can be periodically updated to reflect newly released music. Gracenote updates can be downloaded by RLX owners at automobiles.acura.com in the Ownerlink section (up to four updates per year maximum). The updates can then be loaded onto a CD-R or onto a USB thumb drive, which in turn can be used to update the RLX audio system. Even without a Gracenote update, newly released audio tracks will play on the sound system, without accompanying text information on genre, artist, album name and track name.
Song By Voice®
Song by Voice® is standard on the RLX Sport Hybrid. From most navigation screens, the driver can simply press the TALK button on the steering wheel. With so much audio content potentially available on the HDD or from an iPod, RLX engineers set out to make it easy to find content. So drivers can simply give a voice command, such as "Play song 'Danny Boy,'" and the system will automatically begin playback. Song by Voice also lets the driver choose music by artist, album, track name, genre, playlist and even composer.
Forward Collision Warning (FCW)
The RLX Sport Hybrid features a new Forward Collision Warning (FCW) system as standard equipment. When the camera-based system detects a vehicle ahead and determines that collision is possible, it provides the driver with visual and audible alerts to encourage avoidance actions. The system does not include an automatic braking function.
Lane Departure Warning (LDW)
Lane Departure Warning (LDW), also standard, provides the driver with visual and audible alerts if the vehicle begins to move out of a detected lane without the turn signal activated. A button on the lower left portion of the instrument panel allows the system to be switched on and off.
Smart Entry Keyless Access System
The RLX features Acura's Smart Entry with Push Button Start. The Smart Entry system lets the RLX owner gain access to the vehicle without having to operate the key fob or conventional key. The Smart Entry remote has a unique digital identity and the RLX can be unlocked when the driver grabs one of the door handles (front doors only on the RLX and RLX with Navigation) while the remote is in his/her possession. When carrying the fob (or if all doors are unlocked), the trunk can be opened by pressing a button located on the RLX's rear fascia.
Once the driver has opened the door and is seated, the Smart Entry system allows the RLX to be started by pushing the Engine Start/Stop button positioned on the instrument panel. When leaving the car, a press of the soft-touch button on the exterior door handle locks all the doors. Alternatively, pressing the Lock button on the Smart Entry remote will also simultaneously lock all doors.
Smart Entry also features a unique "quick vent" feature. When the operator depressed the "unlock" button on the keyless remote for two seconds after unlocking the doors, the system lowers all four windows and opens the power moonroof to quickly vent built-up interior heat. In addition, by inserting the built-in key into the driver's door lock and holding the key in the "lock" position, all open windows can be simultaneously raised.
Adaptive Cruise Control with Low-Speed Follow
The Acura RLX Sport Hybrid Advance features Adaptive Cruise Control (ACC) with Low-Speed Follow. This vehicle speed and distance control system uses a grill-mounted millimeter-wave radar to monitor the distance between the RLX and the vehicle directly ahead. Like a conventional cruise control system, the ACC system can maintain a preset speed. In addition, by combining radar data with data from speed sensors, ACC can regulate the RLX's speed to maintain a preset following distance interval.
The Low-Speed Follow feature can reduce the driver workload in congested traffic by maintaining a selected distance interval, even in stop and go traffic. If a vehicle detected ahead is in range of the system and slows to a stop, the RLX will also come to a stop. When the vehicle ahead moves forward, the vehicle icon on the multi-information display blinks. With a press of the RES/+/SET/- switch up or down, or with a press of the accelerator pedal, the RLX will resume Low-Speed Follow mode.
The following 3 users liked this post by Zoommer:
#1014
Sorry if re-post.
Sarah seems to like the RLX. The lighter side of youtube car reviews...
Sarah seems to like the RLX. The lighter side of youtube car reviews...
#1015
Safety Car
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Don't confuse the Acura RLX with its RL predecessor. There is much more difference than the minimally-changed name would suggest. The RLX is larger than the RL, especially inside, and there especially in rear seat space, where the RL was lacking. Its V6 engine is smaller in displacement -- and makes more power on less fuel. And while it is Acura's flagship luxury sedan, it does not lack for performance and agility.
Or technology, another Acura trait. While the word "technology" is now often used to refer to electronic infotainment, safety, and gadgetry systems, and the RLX can be had with the current state of the art in all of those systems, here it also refers to the underlying engineering. Direct fuel injection and Variable Cylinder Management give its new 3.5-liter V6 310 horsepower and 272 lb-ft of torque when needed -- and deactivate cylinders for fuel savings when power is not necessary. "Precision All-Wheel Steering", hereafter known as P-AWS, transparently aids handling and stability. It changes toe-in under braking, adding stability. The rear wheels are moved in the same direction as the fronts during medium- to high-speed maneuvering, and opposite the fronts in low-speed corners. This improves response, reduces understeer, and ever so slightly reduces tire scrub for a small improvement in fuel economy as well. Agile Handling Assist can activate 1 rear brake to help quicken turn-in when cornering. Shades of the Japanese supercars of the 1980s, but much-improved thanks to modern electronics. Both systems are found in all front-wheel drive RLXes.
Want all-wheel drive in your RLX? That's almost a different car -- the RLX Sport Hybrid SH-AWD. The V6 and a 47-hp electric motor drive the front wheels, while rear drive is taken care of by twin 36-hp electric motors, with torque vectoring under computer control. Combined system maximum horsepower is 377, the highest yet in an Acura. You want impressive technology? There it is, and consider that a test run for the next-generation NSX.
But my test car for the past week was a "regular" RLX, in premium Advance trim. The P-AWS system gave it surprising agility and controllability, important not only for driver enjoyment but also for active safety -- the accident you can avoid is 1 you don't have. It felt like it had a good AWD system, like Acura's own (non-hybrid) SH-AWD. As a midsize, mid-luxury sports sedan, the RLX's competition includes the best efforts of the German, American, and Japanese manufacturers, such as the Audi A6, Mercedes-Benz E-Class, BMW 5-Series, Cadillac CTS, and Lexus GS. The late RL was under-equipped for that fight. The RLX is more than competitive.
In Acura fashion, "trim levels" are option packages. All have the expected amenities including a rearview camera (here with multiple viewing angles), comprehensive information system display, power everything (windows, mirrors, front seats, steering wheel, and sunroof), a premium audio system with all current input modes including Bluetooth® streaming, and LEDs for interior and exterior lighting, including headlamps and taillamps and Forward Collision Warning (FCW) and Lane Departure Warning (LDW) safety systems and more. "RLX With Navigation" adds a voice-recognition navigation system, the AcuraLink® telematics system, a GPS-linked tri-zone automatic climate-control system, and color, instead of monochrome, Multi-Information Display (MID). "With Technology Package" adds larger wheels, premium leather and ebony wood interior accents, a blind-spot information system (BSI), upgraded audio, acoustic glass for a quieter interior, and retractable side mirrors. The "Krell Package" further upgrades the audio and improves sunshades for rear passengers. "Advance Package" means premium level, with Adaptive Cruise Control (ACC), Collision Mitigating Braking System (CMBS), the Lane Keeping Assist System (LKAS), parking sensors, ventilation added to the front seats and heating to the outboard rear, and, yes, more. It's beyond fully-equipped…
APPEARANCE: Acura's grille design has undergone many a transformation over the years, but its basic 5-sided shape establishes continuity, if the details have sometimes been more than a little controversial. The current grille would be identifiably Acura even without the "A" logo in the thick top crossbar. Ditto for the overall shape, with graceful proportions, sharply-sculpted details, and signature wheel arches. Technology is announced by the multi-faceted Jewel-Eye™ LED headlights. They are very different from the more familiar halogen and HID lights. Chrome trim around the grille, headlights, and side windows gives the expected luxury touch. LEDs are used in the front door handles, and light when the fob-carrying driver gets within 5 feet or so, a thoughtful touch at night. LED taillights dominate the rear, and the exhausts are hidden.
COMFORT: It's not quite a stretch limo, but close. RL sales were lost because of a lack of rear-seat space. That will not be an issue here. The RLX is the most spacious Acura sedan yet, especially in the rear. In Advance trim, rear outboard positions have 2-level heat. Which won't impress front passengers, who get 3 levels of heat or cooling instead of the standard 2 of heat. Seat comfort is as expected in a luxury car, long trips a specialty. Milano leather graces the Navigation and higher models, and stitched leather is found on the doors, instrument panels, and steering wheel rims of all. It's a handsome, contemporary package, with good ergonomic design and useful storage -- the console box opens from the side, either side, for convenience of both front occupants. Instrumentation is bright and easily visible, and, in upper models, twin screens allow display of navigation and information simultaneously -- with further information directly in front of the driver, between the tach and speedometer. And yes, it's all programmable, with enough to keep a technophile happy for a while. There's plenty of trunk space, although, as is common in the luxury classes, the rear seat does not fold. There is a lockable ski pass-through.
SAFETY: Nearly all existing electronic safety systems are either standard or available in the RLX. Its "Advanced Compatibility Engineering" II unibody structure and full suite of airbags form a solid base for passive passenger protection, while antilock disc brakes with brake assist and electronic brake-force distribution and the maneuverability advantages of the P-AWS and Agile Handling Assist systems take care of active safety.
RIDE AND HANDLING: The RLX's double-wishbone front, multilink rear suspension is tuned in the European luxury manner for a good balance between comfort and cornering ability. Comfort prevails, but maneuverability is good as well. Understeer is reduced and turn-in sharpened by the P-AWS and Agile Handling Assist systems (and yes, controllability and maneuverability aren't merely enjoyable aspects of driving, they are important to safety). Steering effort is moderate, never too light or too heavy. The acoustic glass used in Technology models and above further helps cabin quiet.
PERFORMANCE: You don't have to run the RLX's 3.5-liter V6 up to redline to get anywhere. Statistics of 310 horsepower at 6500 rpm and 272 lb-ft of torque at 4500 hint that everything happens high in the rev range, but the i-VTEC valve control system ensures that there is plenty of low- and mid-range torque for everyday driving. Put the shifter in D and relax… or, especially when the road is interesting, use "S" sport mode with shifting of the 6-speed automatic re-mapped for quicker acceleration. Cylinder deactivation further improves highway economy, as power is needed for acceleration, but not necessarily for maintaining a steady pace. With a sub-6.0 second 0-60 time, the RLX is quick enough for its mission. Shift for yourself via the paddles behind the steering wheel, and you will become acquainted with a seriously strong top end. EPA mileage figures are 20 mpg city, 31 highway. In mostly secondary road and city driving, I got between 19 and 22 mpg. A highway drive, at realistic speeds, returned 27, with plenty of hills to deal with. The week's average was 21, but that could be easily improved by more highway driving. Or easily decreased by keeping the revs up… Yes, there is more than a bit of sport with all of the luxury comfort.
CONCLUSIONS: Acura's RLX combines luxury refinement and comfort with engineering, safety, and entertainment technology and impressive performance.
SPECIFICATIONS
2015 Acura RLX Advance
Base Price $ 60,450
Price As Tested $ 61,345
Engine Type aluminum alloy SOHC 24-valve V6 with direct fuel injection, Variable Cylinder Management, i-VTEC variable valve timing and lift control
Engine Size 3.5 liters / 212 cu. in.
Horsepower 310 @ 6500 rpm
Torque (lb-ft) 272 @ 4500 rpm
Transmission 6-speed multi-mode automatic
Wheelbase / Length 112.2 in. / 196.1 in.
Curb Weight 3997 lbs.
Pounds Per Horsepower 12.9
Fuel Capacity 18.5 gal.
Fuel Requirement 91 octane premium unleaded gasoline
Tires 245/40R19 98W m+s Michelin Primacy mxm4
Brakes, front/rear vented disc / solid disc, ABS, EBD, BA, VSA standard
Suspension, front/rear independent double wishbone, independent multi-link
Drivetrain transverse front engine, front-wheel drive
PERFORMANCE
EPA Fuel Economy - miles per gallon city / highway / observed 20 / 31 / 21
0 to 60 mph 5.8 sec
OPTIONS AND CHARGES
Destination Charge $ 895
2015 Acura RLX Advance
Base Price $ 60,450
Price As Tested $ 61,345
Engine Type aluminum alloy SOHC 24-valve V6 with direct fuel injection, Variable Cylinder Management, i-VTEC variable valve timing and lift control
Engine Size 3.5 liters / 212 cu. in.
Horsepower 310 @ 6500 rpm
Torque (lb-ft) 272 @ 4500 rpm
Transmission 6-speed multi-mode automatic
Wheelbase / Length 112.2 in. / 196.1 in.
Curb Weight 3997 lbs.
Pounds Per Horsepower 12.9
Fuel Capacity 18.5 gal.
Fuel Requirement 91 octane premium unleaded gasoline
Tires 245/40R19 98W m+s Michelin Primacy mxm4
Brakes, front/rear vented disc / solid disc, ABS, EBD, BA, VSA standard
Suspension, front/rear independent double wishbone, independent multi-link
Drivetrain transverse front engine, front-wheel drive
PERFORMANCE
EPA Fuel Economy - miles per gallon city / highway / observed 20 / 31 / 21
0 to 60 mph 5.8 sec
OPTIONS AND CHARGES
Destination Charge $ 895
#1016
Safety Car
Thread Starter
![Arrow](https://acurazine.com/forums/images/icons/icon2.gif)
The 2015 Acura RLX is a veritable showcase of technology and it’s rolling proof of how the company has embraced and developed the next generation of personal vehicle motivation.
Honda is recognized globally for its engineering prowess. The RLX is the pinnacle of that effort to date (until the next generation NSX Super Car arrives later this year).
That limited-production sports car is expected to have a conventional engine driving 1 set of wheels and electric motors the other.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8482web.jpg)
You don’t have to wait and spend more for fewer seats. At $70,000, the Sport Hybrid version of the 2015 RLX offers that same combination of engine and 3-motor power in a luxurious 4-door sedan, along with a treasure chest of other slick engineering.
I will get to the car itself in a bit, but 1st a glance at the engineering/technology.
The RLX has a 310-horsepower V6 engine driving the front wheels, a pair of 36-horsepower electric motors driving the rear wheels (one each) and a 46-horsepower electric motor hooked up to the engine up front.
The engineering accomplishment centers around what they do and how well they work together.
Pay attention to the Heads Up Display (HUD) in the windshield and you can see:
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8473web.jpg)
ELECTRIC LAUNCH
The electric motors drive the rear wheels to get the car underway silently under low throttle conditions. It can continue in this manner as long as the juice from the 1.3 kW-h lithium-ion battery holds out and you don’t push too hard — up to 10 kilometres.
ADD THE ENGINE
Even slight pressure on the accelerator will bring the engine to life and the front wheels into play for extra propulsion. At this point the electric motor up front starts to generate electricity to recharge the battery pack.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8509web.jpg)
ELECTRIC ONLY
At speeds up to 80 km/h the car can be driven by the rear electric motors only under very light throttle.
GAS ONLY
At higher speeds the engine drives the front wheels, the front electric motor charges the battery pack and those at the rear get a rest.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8485web.jpg)
FULL POWER
Goose the gas and the engine and both motors put a total of 377 horsepower to the ground.
REGEN
While decelerating or braking, all 3 electric motors go into regeneration mode, recharging the battery pack.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8492web.jpg)
NOTHING NEW, YET
Technophiles may note that there is nothing new here and that plenty of hybrids act in the above manner — or some semblance of that. But from here on is where the clever engineering and countless weeks and months of development show.
AWD
If sensors detect low traction situations, the RLX converts to AWD. All 4 wheels are driven — the fronts by the engine, the rears by the motors.
CORNERING ASSIST
Accelerate through a corner and additional power is applied to the outside rear wheel to help push the car around the corner. At the same time the polarity of the motor at the inside rear wheel is reversed, causing regenerative braking, pulling the car into the turn while generating the added power for the outside wheel.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8499web.jpg)
POWER OUT
As you accelerate out of the turn, both rear motors supply power for added thrust.
NORMAL
Under normal conditions, where you are not trying to accelerate to and through a corner, the control units apportion power front-to-rear and side-to-side appropriately for a seamless transition through the turn.
Most drivers will never sense the complexity or benefits of this combination of power inputs and distribution and that’s why I mention the HUD display which shows, graphically, what is going on at each wheel, including the reverse direction of power to the inside wheel in some cornering situations. What they will notice is a very smooth, powerful, refined and sophisticated luxury car.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8515web.jpg)
The design is somewhat short of attention-getting, other than the wicked LED headlights. They not only make for brilliant lighting at night, while using very little power, but a pretty sharp look in the daylight.
Inside, you will find a full-feature luxury car loaded with amenities and technology. Quality, fit and finish, leather and wood are all top class. There is a configurable screen between the speedometer and tachometer, the aforementioned HUD and there are 2 information screens on the center stack. A row of console-mounted push buttons and pull levers operate the automatic transmission.
The RLX also has the latest version of AcuraLink which is a little more complicated than I’d like, requiring a lot of attention to do simple chores like changing stations. The only conventional knob to be found is actually a control for the AcuraLink system.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8518web.jpg)
There is plenty of head, leg and shoulder room for 4 big adults. Trunk space is restricted by the big battery pack over the rear axle.
On the road, if you can tear your attention away from all the electronic trickery going on, you will notice an agile car. Much of the alacrity comes from the sophisticated Super Handling AWD system and the ability to push the outside and tug on the inside wheel in corners. But there is also some pretty clever suspension tuning that simultaneously provides a very supple ride, one worthy of a luxury car.
Most manufactures offering hybrids and/or turbocharged drivetrains claim they offer the fuel economy of a smaller engine with the power of a larger one. Rarely do these claims hold up in real world conditions. You get economy or power — but not both. The same is true here.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8495web.jpg)
Under full throttle conditions the RLX is a very powerful and responsive automobile, feeling every bit like it has 377 horsepower. Driven with an extremely light throttle on flat roads with no acceleration it shows impressive fuel mileage. But my week-long, 750 km mix of city and mostly highway driving averaged 9.1 litres/100 km.
That borders on impressive for a big and heavy (4,400-lb) luxury car offering this level of refinement and amenities, but nothing too special in this sense. The numbers would be higher in warmer weather when the battery and electric power would come into play more often and remain in the equation longer.
![](http://thechronicleherald.ca/sites/default/files/u27129/IMG_8477web.jpg)
While the Acura Legend was once the most popular Japanese luxury car, its replacement, the Acura RL, has fallen to near the bottom of the charts, selling at the rate of about 10 per month across the land while the class leader moves more than 300 during the same period.
Until the new NSX arrives to generate additional attention for the brand and showroom traffic, technically-oriented luxury car buyers may seek out and test drive the new RLX. If they do, the numbers should grow.
The specs
2015 Acura RLX Sport Hybrid SH-AWD
Price: $55,590 base; $55,590 as tested plus freight
Engine 3.5L DOHC V6
Power: 377 horsepower; 341 lb-ft of torque
Transmission: Seven-speed dual-clutch automatic
Natural Resources Canada fuel economy (L/100 km): 8.0 city, 7.5 highway
2015 Acura RLX Sport Hybrid SH-AWD
Price: $55,590 base; $55,590 as tested plus freight
Engine 3.5L DOHC V6
Power: 377 horsepower; 341 lb-ft of torque
Transmission: Seven-speed dual-clutch automatic
Natural Resources Canada fuel economy (L/100 km): 8.0 city, 7.5 highway
The following 2 users liked this post by TSX69:
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#1017
Torch & Pitchfork Posse
^^^ Always appreciate the research time and effort you bring to this forum TSX69
But the article depicts a 2015 model for the SH RLX? Is Canada able to market the SH as a 2015 MY or is it an error (and understandably so) on the author's part? There are also pics in there that do not appear to be the RLX.
EDIT: The link is now down so maybe the publisher caught those errors?
But the article depicts a 2015 model for the SH RLX? Is Canada able to market the SH as a 2015 MY or is it an error (and understandably so) on the author's part? There are also pics in there that do not appear to be the RLX.
EDIT: The link is now down so maybe the publisher caught those errors?
The following users liked this post:
TSX69 (01-17-2015)
#1018
Senior Moderator
The interior pix are of the Cadillac XTS.
Great review, though! Pretty much tells the same story as the owners on this site.
Great review, though! Pretty much tells the same story as the owners on this site.
#1020
Grandpa
Join Date: Dec 2003
Location: Virginia, Besieged
Age: 68
Posts: 7,596
Received 2,609 Likes
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![what](https://acurazine.com/forums/images/smilies/what.gif)
Am I supposed to know what all those buttons are?
The ones to the left of the steering wheel?
.
#1021
Pro
BTW, the two blank spares on the US car are perfect for installing an under the hood radar system. Here's what my buttons now look like. The last on the right is a master power on/off switch and the next to last is now a momentary contact mute button. A very professional installation - looks like factory.
#1022
Grandpa
Join Date: Dec 2003
Location: Virginia, Besieged
Age: 68
Posts: 7,596
Received 2,609 Likes
on
1,475 Posts
Interesting!
We can't have radar in Virginia, unfortunately. :-)
We can't have radar in Virginia, unfortunately. :-)
#1023
[QUOTE=George Knighton;15302525]![what](https://acurazine.com/forums/images/smilies/what.gif)
Am I supposed to know what all those buttons are?
The ones to the left of the steering wheel?
Hello George,
the missing buttons are for the lights washers and for the Acoustic Vehicle Alert System. the lights washer spray once when you spray the windshield and the lights are on and never again. when you want to wash the lights after the first spray or without washing the windshield, you have to press that button. i do it a lot to keep them clean from backspray. they are placed a bit out of the way, but im used to them in the MDX. i would post a picture but i dont know how to post to the server, or whatever was requested.
hope this helps
![what](https://acurazine.com/forums/images/smilies/what.gif)
Am I supposed to know what all those buttons are?
The ones to the left of the steering wheel?
Hello George,
the missing buttons are for the lights washers and for the Acoustic Vehicle Alert System. the lights washer spray once when you spray the windshield and the lights are on and never again. when you want to wash the lights after the first spray or without washing the windshield, you have to press that button. i do it a lot to keep them clean from backspray. they are placed a bit out of the way, but im used to them in the MDX. i would post a picture but i dont know how to post to the server, or whatever was requested.
hope this helps
The following users liked this post:
George Knighton (01-17-2015)
#1024
Pro
Yes. That's why I have an accessible on/off switch, for traveling to VA (or Canada). But it's legal pretty much wherever I travel, and the Sport Hybrid is so comfortable on the highway that I sometimes drift into going a little faster than I should, especially when the road conditions are good. A quick beep and a couple of flashing lights built into the dash above the wheel remind me to keep it down.
#1025
Pro
^^^ For the record, George, I "should" clarify that the "should" above refers to posted limits, not to any sense that the car and the driver and the road would not safely support the speeds in question.
![Yum](https://acurazine.com/forums/images/smilies/yum.gif)
#1026
2020 Acura RLX Advance
AUTOWEEK
"I’m left wondering if it’s a car for people who would only consider buying an Acura"
(quote above from Autoweek article)
2014 Acura RLX Sport Hybrid SH-AWD review notes | Autoweek
"I’m left wondering if it’s a car for people who would only consider buying an Acura"
(quote above from Autoweek article)
2014 Acura RLX Sport Hybrid SH-AWD review notes | Autoweek
The following 2 users liked this post by CadiGTi:
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#1027
Grandpa
Join Date: Dec 2003
Location: Virginia, Besieged
Age: 68
Posts: 7,596
Received 2,609 Likes
on
1,475 Posts
AUTOWEEK
"I’m left wondering if it’s a car for people who would only consider buying an Acura"
(quote above from Autoweek article)
2014 Acura RLX Sport Hybrid SH-AWD review notes | Autoweek
"I’m left wondering if it’s a car for people who would only consider buying an Acura"
(quote above from Autoweek article)
2014 Acura RLX Sport Hybrid SH-AWD review notes | Autoweek
#1028
Senior Moderator
Meh.
#1029
Torch & Pitchfork Posse
AUTOWEEK
"I’m left wondering if it’s a car for people who would only consider buying an Acura"
(quote above from Autoweek article)
2014 Acura RLX Sport Hybrid SH-AWD review notes | Autoweek
"I’m left wondering if it’s a car for people who would only consider buying an Acura"
(quote above from Autoweek article)
2014 Acura RLX Sport Hybrid SH-AWD review notes | Autoweek
One last gasp of air to hold on for a 2016 update and SH offering. Otherwise my Acura loyalty dies along with this car.
#1030
Safety Car
Thread Starter
![Red face](https://acurazine.com/forums/images/icons/icon11.gif)
COLLINGWOOD, ONT.—The most powerful production car Acura has ever built is pretty unassuming to the naked eye considering its lofty status.
Frankly, the RLX Sport Hybrid SH-AWD isn’t the answer 1 would likely give if Acura ever decided to turn the achievement into a question and include it in its very own game of trivia.
That isn’t to say the car isn’t worthy, it’s just not what 1 might expect for a company that has also produced the NSX and is working on another 1.
With that said, the RLX Sport Hybrid SH-AWD is indeed the correct answer, and it brings impressive credentials with it.
Despite being the newest RLX, it doesn’t differ much from its gas-powered siblings, at least on the outside. New wheels and a couple of discreetly placed badges are all that distinguish the Sport Hybrid’s outside appearance. Unlike some hybrids, this 1 doesn’t look like it comes from a different family.
Same goes for the spacious interior, which is handsome and well-appointed, with plenty of materials that feel good to the touch and possess an impressive quality feel. Not necessarily groundbreaking, but it’s certainly a comfortable place from which to watch the world whiz by.
As for the rest — navigation and climate control screens, instrument cluster and graphics — it all works nicely together to create a sharp yet blessedly straightforward take on modern luxury.
It doesn’t dazzle — no glitzy animation graphics and sound effects at engine startup and shut down, for example — but in the eyes of this reviewer, that’s a good thing.
Before moving on, there are a couple of noteworthy new pieces of tech on the inside.
The 1st is a head-up display, a 1st for Acura, which projects key information onto the lower windshield in front of the driver. The system provides the usual data (such as vehicle speed and navigation directions), but also incorporates adaptive cruise control and lane-keeping information.
Another noteworthy new item is the centre console which, like the new mid-size TLX, is shifter-less. In its place is an electronic gear selector comprised of buttons and switches that govern PRNDL shifting.
From an esthetic perspective, buttons and switches look much cleaner than a shifter, but they take some getting used to. During my time in the RLX Sport Hybrid, I went grabbing for a shifter that wasn’t there more than once.
Powering the RLX Sport Hybrid is a 3.5-litre direct-injected i-VTEC V6 and Acura’s new 3-motor Hybrid system, and a lithium-ion battery pack.
Basically, there’s 1 35-kilowatt electric motor in the front, 2 27-kilowatt motors in the rear and a 1.3-kWh battery located behind the rear seats.
The front-mounted motor works with the 7-speed dual-clutch (DCT) transmission (the only gearbox available), to deliver power to the front wheels, while the other 2 — known as the twin motor unit — send power to the rears, and all 3 deliver power assist and charge the battery pack.
All of this makes the RLX Sport Hybrid a pretty powerful machine. Combined horsepower and torque outputs are indeed V8-like (377 hp/341 lb.-ft.), adding credence to Acura’s boast that this car is the most powerful production model it has ever built.
It certainly feels like it on the road.
Acceleration is seat-pressing, especially in Sport mode (which makes use of more aggressive shift points), the steering is nicely weighted and quite sensitive, and the brakes are excellent with no discernable fading.
As for the handling, Acura has cleverly reworked its SH-AWD (Super Handing All-Wheel Drive, for those unaware) to suit this car.
Unlike other versions, the 1 on RLX Sport Hybrid doesn’t draw power from the gas engine. Instead, the electric motors mounted at the rear use battery power to send torque to the rear wheels in varying amounts, a process that is commonly referred to as torque vectoring.
Without getting unduly technical, torque vectoring essentially improves the car’s cornering ability by sending more (positive) or less (negative) torque to rear wheels at the same time. By delivering more torque to the outside rear wheel and applying brake torque to the inside rear, the SH-AWD system helps the car turn more efficiently.
While there was no closed-course testing during my time behind the wheel of the RLX Sport Hybrid to see how it performed when pushed hard (such as through an autocross course, for example), it did acquit itself well on a variety of undulating and twisty country roads, most of which were relatively smooth.
Carrying a little too much speed through some twisty sections, as I did deliberately, didn’t upset the car very much, and I was able to gather it back up and continue on with little drama.
In terms of the biggest selling point for this car (or any hybrid) — fuel economy — the RLX Sport Hybrid’s numbers depend almost entirely on how you drive it. A heavy foot, in other words, won’t return great fuel economy, hybrid or not.
Neither my driving partner nor I were particularly concerned with soft-pedalling the car around, and the average fuel consumption number our tester returned (8.6L/100 km), is a reflection of that.
I say this not to impugn Acura, or to call their sparkling numbers into question, but just merely to point out that it all depends on how you drive.
With that said, the RLX Sport Hybrid is equipped with various driving modes that engage at different times to improve efficiency.
For example, if there’s sufficient battery power, the rear motors alone can get the car moving from rest. This is known as EV Launch.
With EV Cruising, the rear motors can drive the car at lower speeds, while at higher speeds Engine Cruising uses the gas engine to drive the front wheels. At the same time, the front-mounted electric motor uses excess engine torque to charge the battery.
At $69,990, the RLX Sport Hybrid SH-AWD isn’t an inexpensive car, but considering the segment it’s competing in and the generous amount of sophisticated technology it comes loaded with, it’s worthy of serious consideration.
Freelance writer Lee Bailie is a regular contributor to Toronto Star Wheels. Travel and other expenses for Lee Bailie were paid by the manufacturer. For more Toronto Star automotive coverage, go to thestar.com/autos . To reach Wheels Editor Norris McDonald: nmcdonald@thestar.ca .
2014 Acura RLX Sport Hybrid
Price: $69,990
Powertrain: 3.5L V6 gas engine/front electric motor, rear twin motor unit
Power/torque (hp/lb.-ft.): 377 / 341 (combined hybrid output)
Fuel consumption (L/100 km, city/hwy./combined): 6.8/6.3/6.5
Recommended fuel: Premium unleaded (91 octane)
Competition: Audi A6, BMW 5-Series, Lexus GS, Mercedes Benz E-Class
What’s best: impressive road manners, tasteful interior, sophisticated technology package
What’s worst: anonymous exterior styling, gear selector a bit fussy
What’s interesting: first Acura to feature a head-up display
Price: $69,990
Powertrain: 3.5L V6 gas engine/front electric motor, rear twin motor unit
Power/torque (hp/lb.-ft.): 377 / 341 (combined hybrid output)
Fuel consumption (L/100 km, city/hwy./combined): 6.8/6.3/6.5
Recommended fuel: Premium unleaded (91 octane)
Competition: Audi A6, BMW 5-Series, Lexus GS, Mercedes Benz E-Class
What’s best: impressive road manners, tasteful interior, sophisticated technology package
What’s worst: anonymous exterior styling, gear selector a bit fussy
What’s interesting: first Acura to feature a head-up display
#1031
Senior Moderator
This writer gets it, even the fuel economy.
#1032
#1033
Safety Car
Thread Starter
![Cool](https://acurazine.com/forums/images/icons/icon6.gif)
COLLINGWOOD, ON: Acura calls its flagship RLX Hybrid the most powerful sedan it has ever produced.
With the mating of a 3.5-litre gasoline engine, 3 electric motors and a potent lithium-ion battery, this full-size premium sedan easily leaves others behind at the stoplight.
But in real world terms, the ability to pass on the highway is (excuse the pun) electrifying.
When the engine/motors come together, the RLX takes off, but what impresses is the linear feel as you are pressed back into the seat. You can almost sense the building of torque through the steering wheel.
Try one and you will be surprised.
![](http://media.zuza.com/f/2/f26892ea-4829-4b01-a121-423fa4980c91/Acura_RLX_Hybrid_15_rear___Gallery.jpg)
Officially called the 2015 Acura RLX Sport Hybrid SH-AWD (Super Handling All-Wheel-Drive) there’s quite a lot of thinking that went into the overall concept and design.
Acura says the RLX Hybrid is part of its “Human Centered Approach” or more simply, the blending of what a human can do to make life easier and what a machine can do to make life richer.
If we take a little trip into Japanese culture, Acura wants the RLX to achieve 2 goals – Takaburi (exhilarating) and Inomama (at the will of the driver).
Taking this 1 step further, the RLX SH-AWD Hybrid is aimed at providing V8-class performance (Takaburi) with 4-cylinder fuel economy but not without the enjoyment of driving (Inomama).
So how does Acura do this?
![](http://media.zuza.com/3/5/35d5bf6e-629c-46bc-bec5-27cd59019533/Acura_RLX_Hybrid_15_LED___Gallery.jpg)
It starts with a 3.5-litre direct injection V6 at the front in tandem with an integrated electric motor and 7-speed dual clutch transmission.
The engine alone produces 310 hp and 273 lb/ft of torque.
But at the rear are 2, 1-way clutch electric motors drawing on the lithium-ion battery producing a combined 54 hp and 108 lb/ft of torque for an overall 377 hp and 341 lb/ft of torque.
That results in a 2015 5-cycle fuel economy rating of 8.0/7.5/7.7L/100 km city/highway/combined, which is as good or better than hybrids at half the size not to mention luxury.
All this is displayed to the driver through the information display located at the centre of the main instrument panel.
![](http://media.zuza.com/4/6/460b9013-aea1-4f7f-9819-9f52e89fa232/Acura_RLX_Hybrid_15_inter___Gallery.jpg)
At launch, only the electric motors at the rear drive the RLX.
Depending on how gentle you are, the range at moderate speed in my case was 12 km.
At that point if you switch to gentle acceleration, the engine drives the front motor and front wheels.
While all this is going on, the hybrid drive system is monitoring electric draw and engine/coast/brake regeneration harvesting for the most efficient of the onboard power sources.
Of course, you have to accelerate or pass at some point. So if you lay the hammer down, the engine and all 3 motors kick in to impress (at least me) with the acceleration.
![](http://media.zuza.com/3/6/3617ca1d-841d-450e-9640-254b10c1093d/Acura_RLX_Hybrid_15_screen___Gallery.jpg)
When you get up to highway speed, the rear motors shut down and the engine drives the front wheels, which is pretty standard in most hybrids.
Where the RLX Hybrid differs is in the way the SH-AWD system deals with traction by using rear torque from the motors to generate its own turning force by actually changing the pitch angle to, in effect, create rear end torque vectoring.
Think of it this way.
You come into a right corner. The front engine and electric motor powers you forward.
At the rear the motors supply positive torque to the outside wheel and negative torque to the inside wheel.
![](http://media.zuza.com/1/5/153bdfb0-1900-40df-bfdc-efdcda1e1609/Acura_RLX_Hybrid_15_engine___Gallery.jpg)
That alters what is known as the Yaw Moment, resulting in what Acura says creates “unique flexible control of rear torque (that) generates its own turning force,” meaning the car actually pivots on the inside rear wheel for a much cleaner and stable exit.
It sounds confusing, but it is completely transparent and it works.
The same system will be used when the Acura NSX supercar debuts later this year, but it will be swung around 180 degrees with the engine/motor/transmission at the rear and the 2 electric motors at the front.
With torque steering available at the front, the NSX looks to re-write cornering power.
On the RLX Hybrid all of this is displayed by a full color heads-up display that is very entertaining, but I found distracting. I didn’t look but I expect it can be turned off.
![](http://media.zuza.com/3/e/3e1d87aa-c554-4f4f-8bc8-4d719548e094/Acura_RLX_Hybrid_15_back_seat___Gallery.jpg)
The packaging of the motors and battery is very discreet with the trunk (328 litres) able to swallow 4 golf bags whole and there’s even an under cargo floor storage tray.
This comes home in the rear seating area with knee room of 985 mm, which Acura claims is segment leading.
As there is no AWD prop shaft running from the engine to the rear, the intrusion on the back seat floor is minimal.
As the brand’s flagship, the RLX Hybrid abounds with the latest safety technology such as Forward Collision Warning, Lane Departure Warning, Lane Keeping Assist, Adaptive Cruise Control, and a truly nifty 360-degree surround system with no less than 6 viewing angles.
On the highway from Collingwood to Meaford on a wet surface my co-driver and I tried lane departure mode. Sometimes older roads with faded lines cause the cameras recognition problems.
![](http://media.zuza.com/1/5/15849a62-baf5-4efe-a1e4-8f48787b0f7e/Acura_RLX_Hybrid_15_cargo___Gallery.jpg)
But in this case, the RLK sensed what was going on and gently steered us back to the correct position between the lines.
On the inside, the choice of materials was top drawer, especially the way the hues of the leathers and woods complimented each other.
Price is $69,990 and it comes loaded. It's mixing hybrid apples and oranges but a roughly comparable Lexus GS450 Tech Package is $55,200 with a BMW ActiveHybrid5 costing $79,150.
The only problem with the 2015 Acura RLX SH-AWD Hybrid is the brand hasn’t been hooting its horn about how much this luxury sedan has to offer.
Acura, over to you.
The following 5 users liked this post by TSX69:
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wstr75 (03-21-2015)
#1034
Hey, y'all.
Brand new to the 'zine and happy to be here.
I had the pleasure of driving not 1 but 2 new RLX's today: a 2014 Hybrid Tech package and a 2016 normally aspirated Tech package.
First things first. I purchased outright a brand new 2013 ILX Premium for commuting duties 2 years ago as a 50th birthday present. Great little car for what I use it for. Exceeds listed mpg's by 3-5 mpg's. Definitely NOT a dressed up Civic. I drove both extensively..no contest.
When the TLX came out, I just wanted "more car". I was very impressed with the models I tested and thought the TLX was the one to buy. I decided to wait a bit before writing out a check for the full amount like I did with the ILX.
Lately, I've been researching the RLX and decided to take a test. I first drove the 2014 Hybrid and was very much impressed. Great power, handing, interior and elegant exterior.
I asked my salesman if he had any "regular models" in stock. He just happened to have a 2016 right off the truck...literally (it still had the protective plastic all over the body)!
I have to say that, once again, I was very impressed.
I think the Hybrid is more to my liking, but I could go with either. I'll take a few days to think about it. I don't think I could go wrong with either as each would be a great commuter and "road car".
Also, I will need to drive the Hybid and the TLX 6 cylinder back to back before making a decision.
Many people like to bash Acura vehicles and compare them to the "German 3". I don't see the sense in that. Those manufacturers are at the other end of the spectrum.
I chose Acura because I felt like I was getting so much more for my money.
That and I don't really like the "feel" of the German cars. Yes, I'm someone who has not jumped on the "German bandwagon". I've driven plenty of them and could never see myself owning one. Plus, I'm not trying to make a statement. I just like not being charged extra for that which is standard in Acuras.
Acura may not not make the absolute best cars in the world, but the quality is very good and the price is right...you won't "break the bank" purchasing one.
There are definitely other very good cars out there, however, I will stick with Acura....happily.
Nuff said.
olds_cool63
Brand new to the 'zine and happy to be here.
I had the pleasure of driving not 1 but 2 new RLX's today: a 2014 Hybrid Tech package and a 2016 normally aspirated Tech package.
First things first. I purchased outright a brand new 2013 ILX Premium for commuting duties 2 years ago as a 50th birthday present. Great little car for what I use it for. Exceeds listed mpg's by 3-5 mpg's. Definitely NOT a dressed up Civic. I drove both extensively..no contest.
When the TLX came out, I just wanted "more car". I was very impressed with the models I tested and thought the TLX was the one to buy. I decided to wait a bit before writing out a check for the full amount like I did with the ILX.
Lately, I've been researching the RLX and decided to take a test. I first drove the 2014 Hybrid and was very much impressed. Great power, handing, interior and elegant exterior.
I asked my salesman if he had any "regular models" in stock. He just happened to have a 2016 right off the truck...literally (it still had the protective plastic all over the body)!
I have to say that, once again, I was very impressed.
I think the Hybrid is more to my liking, but I could go with either. I'll take a few days to think about it. I don't think I could go wrong with either as each would be a great commuter and "road car".
Also, I will need to drive the Hybid and the TLX 6 cylinder back to back before making a decision.
Many people like to bash Acura vehicles and compare them to the "German 3". I don't see the sense in that. Those manufacturers are at the other end of the spectrum.
I chose Acura because I felt like I was getting so much more for my money.
That and I don't really like the "feel" of the German cars. Yes, I'm someone who has not jumped on the "German bandwagon". I've driven plenty of them and could never see myself owning one. Plus, I'm not trying to make a statement. I just like not being charged extra for that which is standard in Acuras.
Acura may not not make the absolute best cars in the world, but the quality is very good and the price is right...you won't "break the bank" purchasing one.
There are definitely other very good cars out there, however, I will stick with Acura....happily.
Nuff said.
olds_cool63
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#1035
^^ You will be a GREAT addition to Acurazine with well articulated posts!
I agree with you, you don't buy an Acura to compete with the Germans, you buy it because its a great car that is much more affordable and unique in its own way.
I agree with you, you don't buy an Acura to compete with the Germans, you buy it because its a great car that is much more affordable and unique in its own way.
#1037
Safety Car
Thread Starter
![Thumbs up](https://acurazine.com/forums/images/icons/icon14.gif)
Considering results just released from the federal government, the 2016 Acura RLX is looking like 1 of the safest bets you could make on a full-size luxury sedan.
In federal New Car Assessment Program (NCAP) testing, conducted by the National Highway Traffic Safety Administration, (NHTSA), the 2016 RLX earned perfect five-star scores in Frontal Crash and Side Crash tests, as well as all subcategories. It also earned a top 5-star result in the rollover test, which consists of static and dynamic components.
That’s not all. The RLX has also earned top ‘good’ results from the Insurance Institute for Highway Safety (IIHS) in every one of its dynamic crash-test categories—including the small overlap front test. And it has an ‘advanced’ rating in front crash prevention when equipped with the optional Collision Mitigation Brake System, as part of the Advance Package. That operates in conjunction with the RLX’s standard Forward Collision Warning system.
![](http://images.thecarconnection.com/hug/acura-rlx_100503930_h.jpg)
The new federal results apply to the 2015 Acura RLX and 2016 Acura RLX, in its front-wheel-drive form as well as the RLX Sport Hybrid.
For 2016, Acura has underscored the RLX’s flagship status by making the navigation system standard, while the Technology and Advance packages remain step-ups. This year the RLX also includes the AcuraWatch suite of active-safety features—now expanded to include Road Departure Mitigation and a Cross Traffic Monitor—and its suspension has been retuned for a reduction in harshness and better tracking. Remote Start is also now offered as part of the top Advance Package.
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hondamore (04-29-2015)
#1038
I could not find this feature, Cross Traffic Monitor, in the list for the 2016 RLX. Are we sure it is included as a feature, it not listed on the Acura site for the RLX 2016.
#1039
Safety Car
Thread Starter
![Talking](https://acurazine.com/forums/images/icons/icon10.gif)
ACURA RLX ELITE 2015 AT A GLANCE
BODY STYLE: 4-door, full-size premium sedan.
DRIVE METHOD: Front-wheel-drive
ENGINE: 3.5-litre V6 engine with 6-speed automatic transmission front (310 hp, 272 lb/ft of torque)
CARGO CAPACITY: Base, 423 litres; Elite (as tested) 417 litres
TOWING CAPACITY: NA
FUEL ECONOMY. 10.5/6.4/8.6L/100km city/highway/combined.
PRICE: $62,190 not including $1,995 shipping fee
WEBSITE: Acura Canada
What’s Best: Good looks and solid engineering all at a very attractive price for the segment.
What’s Worst: It’s not exactly underpowered, but a twin-scroll turbo would be just the ticket to match its competitors’ punch.
What’s Interesting: Acura Precision All-Wheel Steer that allows the rear wheels to tow in and out independently to aid in cornering, steering and braking.
The Acura RLX is in some ways the forgotten full-size luxury sedan.BODY STYLE: 4-door, full-size premium sedan.
DRIVE METHOD: Front-wheel-drive
ENGINE: 3.5-litre V6 engine with 6-speed automatic transmission front (310 hp, 272 lb/ft of torque)
CARGO CAPACITY: Base, 423 litres; Elite (as tested) 417 litres
TOWING CAPACITY: NA
FUEL ECONOMY. 10.5/6.4/8.6L/100km city/highway/combined.
PRICE: $62,190 not including $1,995 shipping fee
WEBSITE: Acura Canada
What’s Best: Good looks and solid engineering all at a very attractive price for the segment.
What’s Worst: It’s not exactly underpowered, but a twin-scroll turbo would be just the ticket to match its competitors’ punch.
What’s Interesting: Acura Precision All-Wheel Steer that allows the rear wheels to tow in and out independently to aid in cornering, steering and braking.
A competitor against the likes of the S-Class, A8 and now the Cadillac CT6, the RLX bowed at the 2012 New York Auto Show to critical acclaim.
In the flesh, it is very handsomely styled. In fact during my week with the RLX Elite as tested here, several people commented on its looks, but also asked me what it was.
They had all heard of the SUVs such as the MDX and RDX. Most knew about the sedans TLX and the entry-level ILX and even the upcoming NSX super car, but not the RLX.
Why?
It’s certainly not for lack of engineering. Acura/Honda build and assembly values are among the highest in the world.
In terms of making an impression, the multi-lens LED headlights identify the RLX from literally a block away and the back seat is simply huge.
And when it comes to price, it is more than competitive in its segment.
Let’s look deeper.
While there are 4 RLX models, there are in fact really 2.
3 of them are front-drivers starting with the Base RLX ($49,990), the RLX Tech Package ($55,990) and the RLX Elite Package ($62,190) as tested here. Shipping fee is $1,995.
I should point out this week’s tester is a late 2014, but is mechanically identical to the current 2015 model.
The other is the exotic RLX Sport Hybrid ($69,990) and by exotic it offers the same engine and front drive as the other RLX models, but adds a hybrid drive mode with lithium-ion battery pack and 2 electric motors each driving a rear wheel, with independent all-wheel-drive and a combined 377 hp and 341 lb/ft of torque making it the most powerful Acura built to date.
This hybrid power system is the heart of the Acura NSX supercar; the difference being the engine is mounted mid-ship driving the rear wheels with the 2 electric motors at the front driving the front wheels.
But that, dear reader, is another story for another time.
All RLX models, including the Sport Hybrid, employ Honda/Acura’s long-serving SOHC 3.5-litre V6 now with direct injection with 6-speed SportShift sequential transmission with “Sport” button that changes the transmission shift point for more performance.
In this case it produces 310 hp and 272 lb/ft of torque. NRCan 2015 fuel numbers for the RLX Elite are 10.5/6.4/8.6L/100km city/highway/combined.
What impresses is the vast amount of passenger space in the rear, where they can literally spread their feet out. In fact, total passenger volume is 2,891 litres.
That’s not surprising when you figure the wheelbase on the RLX is 2,850 mm, not that far from the 3,000 mm of the Honda Odyssey 3-row minivan with similar engine and drivetrain, the largest vehicle in the Honda/Acura fleet.
Cargo volume on the RLX/Tech is 423 litres and 417 litres on the Elite, due to the intrusion of speakers for the high-end, 14-speaker Krell surround sound audio system shared by the Elite and Sport Hybrid.
The Krell system is interesting in many ways in that there are 8-inch woofers in each front door with tweeters made with magnesium. Another driver set is on top of the dash instead of in it, so it’s like the band/singer is playing directly to you. Lastly there are 8-inch sub-woofers made with carbon-fibre mounted beneath the rear shelf behind the seats under a mesh cover that covers the whole space.
If you want sound – this is where to come.
In terms of content, the Elite starts as a Technology Package model with features such as Acura navigation with voice recognition, colour TFT multi-function display, blind spot warning, wood grain interior trim with Milano leather including heated rear seats and heated steering wheel, to name just a few.
The Elite adds adaptive cruise control, lane keeping assist and Collision Mitigation Braking System, again, to name a few.
With the exception of the Sport Hybrid, all RLX models come with something Acura calls Precision All-Wheel Steer (P-AWS).
Simply put, it allows the rear wheels to tilt slighting in or out (called toe in or toe out) in addition to be being the 1st such system to allow the rear wheels to change toe angle independent of each other.
In normal driving, the rear wheels point straight ahead in a “neutral” position. But in a lane change, they can pivot as much as 1.8 degrees in the same direction as the front wheels.
In a corner, the rear wheels angle slightly in the opposite direction from the front wheels (reverse-phase) to help rotate the car into the turn. Similarly at low speeds, reverse-phase steering helps the RLX maneuver in tight areas.
Lastly, in case of high-speed braking, each rear wheel angles inward, increasing braking ability and stability.
To find out if it really works, I went to 1 of my favourite twisty roads in Ontario, the Forks of the Credit Road leading up the Niagara Escarpment to Belfountain.
Loaded with sharp elevation changes and switchbacks, there is 1, uphill turn where the road doubles back on itself with a road sign making it look not unlike a paper clip.
With the nose swinging around with a moderate head of steam on, I could feel the back end pirouette in the crux of the corner – marvelous.
And all the time, the RLX actually felt light for its size, which shows the engineers got the suspension geometry and balance right even with the complication of P-AWS.
The Acura RLX has everything going for it except for perhaps the mystique of a 3-point star or blue and white roundel badge.
But that, I think, is going to change when the NSX super car arrives later this year.
That is going give Acura a huge boost in stature and, hopefully, that will rub off on the RLX as people find out just how good it is.
Last edited by TSX69; 04-30-2015 at 06:59 AM.
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neuronbob (04-30-2015)
#1040
Safety Car
Thread Starter
![Talking](https://acurazine.com/forums/images/icons/icon10.gif)
I was @ a fancy conference building & saw this "Private Clubs" magazine - which appears to be geared towards luxury buyers. Anyhow, they had an article about hybrid luxury cars featuring the RLX. Could not find it on their website so here is a pic:
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neuronbob (05-08-2015)