The 2013 IPL G Convertible Infiniti, which is set to go on sale in spring 2012, becomes the second member of the Infiniti Performance Line of premium performance vehicles. First introduced with the dramatic IPL G Coupe, IPL’s product design philosophy focuses on “total vehicle performance,” including unique driving attributes and exclusive exterior and interior features at a highly attractive price point. The new IPL G Convertible features special aerodynamic styling pieces, the dynamic performance of an IPL-tuned V6, exhaust and suspension, 19-inch IPL aluminum-alloy wheels, and unique leather-appointed interior – along with the G Convertible’s three-piece retractable hardtop.

“The Infiniti Performance Line, as demonstrated by our first offering, the IPL G Coupe, challenges the concept of ultra-high cost sports series. IPL pushes the premium performance envelope for buyers seeking a higher level of exclusivity and driving exhilaration, but does so with an Infiniti twist,” said Infiniti Americas Vice President Ben Poore. “Like every Infiniti, the new IPL G Convertible takes a different path from its established competitors, with its retractable hardtop that is designed to look as good with the top up as down. It’s a terrific addition to the Infiniti Performance Line, taking the dramatic Infiniti G Convertible to an even higher level.”

Based on the premium foundation of the Infiniti G37 Convertible, the IPL G Convertible features an advanced VQ37VHR 3.7-liter V6. The engine management system has been recalibrated through air-fuel mixture and ignition timing optimization, raising the maximum horsepower output point to 7,400 rpm. To obtain a natural acceleration feel, the torque curve from low revs to the maximum torque point (5,200 rpm) was tuned for linearity. The IPL-tuned high-flow exhaust is a full dual exhaust design with independent left and right large diameter pipes. The muffler’s inner structure and materials have been maximized to reduce pressure and provide an appropriate performance exhaust note. The result is a 30% reduction in exhaust pressure versus a base G Convertible’s Y-pipe exhaust system design.

As a result of both the exhaust system and engine management changes, the IPL G Convertible generates 343 horsepower – an increase of 18 horsepower over the non-IPL models – and 273lb-ft of torque (+6 lb-ft).

The engine is matched to an electronically controlled 7-speed automatic transmission with Downshift Rev Matching and quick-shift Drive Sport (DS) mode with magnesium paddle shifters and Adaptive Shift Control (ASC).

The IPL G Convertible’s enhanced dynamic vehicle performance focuses on providing confident handling, flat ride and smooth ride comfort. The IPL suspension tuning and damping management philosophy is designed to optimize each aspect of the suspension, effectively connecting the driver to the road surface while minimizing uncomfortable vibrations. Front spring rates have been increase 14% over the G Convertible Sport model and rear spring rates increased 4%. Front stabilizer spring rates have been increased 6% over the G Convertible Sport model and rear stabilizer spring rates increased 125%. Shock tuning has also been adjusted and incorporates an all-new HF-type shock.

The IPL G Convertible also offers a sport-tuned steering gear and large 4-wheel sport brakes (14-inch front, 13.8-inch rear) with aluminum-alloy opposed calipers (4-piston front/2-piston rear).

The IPL G Convertible’s unique exterior includes a dramatic front bumper/fascia design with integrated fog lights and black finishers, sculpted side sills and round chrome exhaust tips. Each part is shaped to complement the G Convertible’s elegantly seductive styling. Combined with the exclusive 19-inch IPL split 7-spoke graphite-finish wheels and low-profile W-rated Bridgestone Potenza RE050A performance tires, the IPL G Convertible embraces a road-ready attitude. The IPL G Convertible is offered in just two exterior colors: Moonlight White and Malbec Black.

The IPL G Convertible interior harmonizes with the exterior styling, offering two color treatments – Stone and IPL-exclusive Monaco Red. All IPL G Convertible interiors include red-stitched leather-appointed Climate-controlled front sport seats with embroidered IPL logos, manual thigh extension and driver’s power torso and thigh support adjustment, red-stitched steering wheel, Silk Obi aluminum trim, IPL embroidered front floor mats, and aluminum trimmed pedals and footrest.

Other standard IPL G Convertible interior features includes a 13-speaker Bose® Open Air Sound System, optimized for both top positions, with AudioPilot® 2.0 noise compensation technology and Personal® front seat headrest speakers, an Adaptive Dual Zone Climate Control that automatically adjusts fan speed and air volume based on top position, and Advanced Climate Control System (ACCS) with Plasmacluster® air purifier, Infiniti Navigation System with voice recognition and available XM NavTraffic® Real-Time Traffic Information, NavWeather™ with Real-Time Weather and 3-day forecast (XM® subscription required, sold separately), Streaming Audio via Bluetooth® and Zagat Survey® Restaurant Guide and touch screen, and Bluetooth® Hands-free Phone System.

Technological and convenience features include standard Infiniti Intelligent Key with Push Button Ignition, Remote Keyless Entry system, a power tilt/telescoping steering column with increased travel, illuminated glove compartment and automatic temperature control. Also standard is XM® Satellite Radio (XM® subscription required, sold separately) and Rear Sonar System.

An Advanced Air Bag System (AABS) with dual-stage supplemental front air bags with seat belt sensors and occupant classification sensor is standard, along with door-mounted curtain side-impact supplemental air bags, front-seat mounted side-impact supplemental air bags and front seat Active Head Restraints. The rear seat includes fixed head rests with rear Pop-up Roll Bars. The G Convertible also features reinforced front side members, front pillars and body sills.

“With it’s pure IPL style and performance, and the added dimension of open-air motoring, the IPL G Convertible is a welcome addition to the Infiniti Performance Line lineup,’” added Poore. “Watch for more models joining the IPL lineup in the future.”

The 2013 IPL G Coupe is offered in one fully equipped model, the IPL G Convertible with 7-speed automatic transmission. There are no options.

TOKYO — Japanese tuner Wald International has tweaked the Infiniti G37 with an aero body kit, choice of wheels and a suspension upgrade.

The G37 package is the latest in Wald's Black Bison series. Officially, the latest package is known as the Infiniti G Sports Line Black Bison Edition.

The G37 sedan is based on the Japanese-market Nissan Skyline sedan, for which Wald also offers a variety of upgrades. For the fancier Infiniti model, Wald has designed an aero body kit that bundles a new front bumper and fascia, side skirts, deck lid spoiler and rear apron with integral diffuser. Exterior accents also include a blacked-out grille and logos, LED running lights and chrome exhaust pipes.

The G37 Black Bison can be ordered with a choice of Wald alloy wheels in diameters up to 20 inches.

In addition, Wald upfits the G37 with a sport suspension and new exhaust system.

Inside Line says: One of the prettiest cars in the Black Bison series.