-- Gullwing model for motor racing's top flight
-- Unique super sports car concept
-- Two monitors for keeping a close eye on the race
-- C 63 AMG Estate once again Official F1™ Medical Car

When the new Formula-1 season gets underway in Manama/Bahrain (12-14 March 2010), it will mark the debut of the most spectacular and powerful Official F1™ Safety Car of all time. The job of the new Mercedes-Benz SLS AMG, which will be launched on 27 March 2010, is to ensure maximum safety in Formula 1. The "gullwing" model replaces the SL 63 AMG, which was used as the Official F1™ Safety Car in 2008 and 2009. As in the last two years, the C 63 AMG Estate will be used as the Official F1™ Medical Car for the coming season.

"Together with the entire AMG Team, I am very proud that the new SLS AMG is the official F1 safety car. I'm sure all Mercedes and AMG fans will be excited to see the gullwing model together with the new Mercedes GP Petronas Team at the F1 circuits," says Volker Mornhinweg, Chief Executive Officer of Mercedes-AMG GmbH.

From March 2010, the Official F1™ Safety Car will be deployed whenever hazardous situations such as accidents or bad weather endanger normal racing. The SLS AMG, piloted by Bernd Mayländer (38, from Germany), will be on standby in the pit lane throughout the entire race. When radioed by Race Control, the former DTM driver and his co-driver, FIA man Pete Tibbetts (44, from the UK) will take to the track at the head of the field in order to guide the Formula-1 race cars safely around the circuit.

Unique vehicle concept for maximum driving dynamics

The Mercedes-Benz SLS AMG has the best possible credentials for this demanding role in the top flight of motor racing: its 6.3-litre V8 engine has a peak output of 420 kW (571 hp) and a maximum torque of 650 Nm, enabling the gullwing model to sprint from 0 to 100 km/h in 3.8 seconds. Fast lap times are a must for the Official F1™ Safety Car, otherwise the Formula-1 cars' tyres and brakes would cool down too quickly, while their engines could overheat.

The unique vehicle concept is a key factor in ensuring outstanding driving dynamics: the aluminium spaceframe body keeps the vehicle weight down to 1620 kilograms (DIN kerb weight). And thanks to the dry-sump lubrication system, the AMG V8 powerplant can be installed very low down, resulting in a beneficial lowering of the vehicle's centre of gravity. The installation position a long way behind the front axle and the transaxle arrangement of the new seven-speed double-clutch transmission on the rear axle have a positive effect on the weight distribution, which is 47/53 percent (front/rear). Pure motorsport tech-nology is used for the AMG sports suspension: aluminium double-wishbone axles front and rear ensure outstanding driving dynamics with precise turn-in ability, first-class agility, low mass inertia when changing direction spontaneously and, therefore, a high cornering limit.

Double-clutch transmission and ceramic composite brake system

The AMG SPEEDSHIFT DCT 7-speed sports transmission with double-clutch technology features four modes and allows fast gear changes with practically no interruption in tractive power – in manual mode ("M"), gear changes can be effected in 100 milliseconds. Together with the 3-stage ESP®, the integrated mechanical multidisc differential lock ensures outstanding traction. Meanwhile, braking distances are minimised and resistance to fading is maximised, even when the brakes are subject to typical race-track loads, courtesy of the AMG ceramic high-performance composite brake system with its generously sized ceramic discs measuring 402 x 39 mm on the front axle and 360 x 32 mm on the rear axle. The weight-optimised 10-spoke forged wheels are shod with 265/35 R 19 (front) and 295/30 R 20 (rear) tyres.

The Official F1™ Safety Car features the same engine, power transmission, suspension and brake system as the standard-production SLS AMG. The exceptional technology package for the super sports car ensures perfect driving dynamics and means that no further technical modifications or lightweight-design measures are necessary, with the sole exception of the all-new rear silencer, which allows the high-revving AMG V8 naturally aspirated engine to breathe more easily and offers Formula-1 fans an even more emotionally charged sound experience.

Aerodynamically optimised roof light bar incorporating LED technology

Compared to the standard-production SLS, the Official F1™ Safety Car is distinguishable on the outside by its prominent F1 logos, carbon-fibre exterior mirrors and the characteristic roof light bar with integrated TV camera. It sits on an all-new carbon-fibre hood whose shape has been tested in the wind tunnel to ensure optimum airflow at the rear aerofoil. The aerofoil pops up when the car reaches 120 km/h and, together with the rear diffuser, provides the necessary rear downforce. LEDs are used for all light functions for the first time in the new, aerodynamically styled roof light bar. Their advantages over the previously used bulbs lie in their extremely fast response time and low power consumption.

The two centrally positioned green lights in the aerodynamically optimised light bar are illuminated when the Official F1™ Safety Car joins the field and first needs to overtake all the racing cars in front of it. Once the SLS AMG has assumed the leading position, the outer orange flashing lights are switched on to signal to the Formula-1 drivers that no overtaking whatsoever is allowed. The white stroboscopic lights in the headlamps and tail lights perform a general signalling function in that they always flash whilst the safety car is deployed. A special number plate at the rear, with "Safety Car" lettering and 700 LEDs, provides additional safety in darkness or wet weather. A reversing camera is integrated to the left of the number plate, allowing those in the cockpit of the Official F1™ Safety Car to keep an eye on the Formula-1 cars behind via monitor.

Practical interior with AMG sports bucket seats

The distinctive gullwing doors open to reveal a practical cockpit which, like the exterior, differs only slightly from that of the standard-production model. AMG sports bucket seats with black leather upholstery and six-point seat belts ensure optimum lateral support. On the right side of the AMG DRIVE UNIT, there are four coloured buttons for controlling the various light functions, along with the signal horn, which is activated when the car is driving into and out of the pit lane. The centre console, like various other interior trim parts, is finished in genuine carbon fibre, while the AMG performance steering wheel in leather/Alcantara features a specially shaped grip area, a high-quality genuine-metal insert and a flat-bottomed rim with a diameter of 370 millimetres. Two genuine-metal shift paddles are used to change between the seven gears in the double-clutch transmission.

Two central monitors in the SLS AMG cockpit are used to monitor the progress of the race. To the left and right of the lower monitor are the controls for the radio system, which allows Bernd Mayländer and Pete Tibbetts to communicate with Race Control as well as with each other. A second interior mirror lets the co-driver keep an eye on the Formula-1 cars behind. Meanwhile, the "Marshalling System" is integrated in the central display on the instrument cluster and in the lid of the glove compartment: here the driver and co-driver can see exactly the same signals as the Formula-1 drivers in their cockpits. For instance, the various LEDs indicate when yellow or green flags are being waved. LEDs indicating the status of the roof light bar, along with an on-board camera angled towards Bernd Mayländer, are mounted at the front end of the dashboard.

C 63 AMG Estate once again Official F1™ Medical Car

The SLS AMG is not the only AMG high-performance car to be involved in the Formula-1 World Championship: as in 2008 and 2009, the C 63 AMG Estate is the Official F1™ Medical Car – responsible for ensuring rapid emergency response in the event of an accident. The lightning-fast estate car follows the Formula-1 field on the start lap because the race cars are still bunched extremely closely together during this critical phase of the race.

The concept on which the AMG Estate is based is ideal for meeting the requirements of Formula-1: outstanding driving dynamics are assured courtesy of the AMG 6.3-litre V8 engine developing 336 kW (457 hp) with a peak torque of 600 Nm, not to mention the AMG SPEEDSHIFT PLUS 7G-TRONIC transmission, the adjustable coil-over suspension, the AMG light-alloy wheels shod with 235/35 R 19 (front) and 255/30 R 19 (rear) tyres, the differential lock, the 3-stage ESP®, and the AMG high-performance brake system with internally ventilated and perforated composite brake discs on the front axle.

The new AMG front apron with larger air dams is an indicator of the optimised cooling for the water, engine oil, transmission fluid and power steering. One aspect that cannot be seen but can certainly be heard is the distinctive AMG V8 sound emitted from the new rear silencers of the AMG sports exhaust system. Like the Official F1™ Safety Car, the Official F1™ Medical Car is distinguishable by its F1‑ logos, the roof light bar, and the stroboscopic flashing LED lights at the front and rear. A number plate illuminated with LEDs and displaying the words "Medical Car" on the tailgate makes the car easier to see in darkness or adverse weather conditions.

Plenty of space in the boot for emergency equipment

The Official F1™ Medical Car is piloted by racing driver Alan van de Merwe (from South Africa); his co-driver is the official FIA Grand Prix Chief Medical Officer Dr Gary Hartstein (from Belgium). Two assisting medical experts from a specially selected clinic near the race track sit in the rear. There is plenty of space for all of the emergency equipment – including a defibrillator and respiration apparatus – in the 485-litre boot of the C 63 AMG Estate. Four AMG sports bucket seats with six-point seat belts, two monitors integrated in the centre console for monitoring the race and a radio set for communicating with Race Control distinguish the interior of the Official F1™ Medical Car from that of the standard-production C 63 AMG Estate.

AMG PERFORMANCE STUDIO responsible for development

The development, track-testing and configuration of the two Official F1™ Safety Cars and the two Official F1™ Medical Cars – in both cases, there is one emergency vehicle and one replacement vehicle – are carried out by the specialists from the AMG PERFORMANCE STUDIO in close collaboration with the test team for AMG overall vehicle development. This involves drawing on over 40 years of know-how from the field of motorsport as well as the wealth of experience in the design of high-performance sports cars. Numerous test drives were carried out on various racetracks in order to tune the suspension and verify all the systems and components. Two highly-qualified AMG technicians are also on hand to take responsibility for the deployment of the Safety Car and Medical Car at all 19 Formula-1 races.

Nine generations of Safety Cars from AMG

For 14 years AMG has continuously provided the Official F1™ Safety Car and the Official F1™ Medical Car in the top flight of international motorsport.

All AMG Safety Cars at a glance

1996: C 36 AMG (W 202)
from 1997: CLK 55 AMG (C 208)
2000: CL 55 AMG (C 215)
from 2001: SL 55 AMG (R 230)
2003: CLK 55 AMG (C 209)
from 2004: SLK 55 AMG (R 171)
from 2006: CLK 63 AMG (C 209)
from 2008: SL 63 AMG (R 230)
from 2010: SLS AMG (C 197)

All AMG Medical Cars at a glance

1996: C 36 AMG (W 202)
1997: C 36 AMG (W 202); E 60 AMG (W 210)
from 1998: C 55 AMG Estate (S 202)
from 2001: C 32 AMG Estate (S 203)
from 2004: C 55 AMG Estate (S 203)
from 2008: C 63 AMG Estate (S 204)

As early as 1984, an AMG E-Class Coupé with V8 engine was used occasionally as the Medical Car. The activities of the Affalterbach-based company are also evidence of Mercedes-Benz's long-standing commitment to Formula 1.

Mercedes-AMG is accepting the challenges of motoring of the future: the SLS AMG E-CELL is evidence of the state-of-the-art development of an exciting super sports car featuring a zero-emission high-tech drive. Boasting a power output of 392 kW and 880 Nm of torque, the technology vehicle from AMG is able to offer exceptional performance. The gullwing with electric drive is part of the company strategy entitled "AMG Performance 2015" which aims to continually reduce fuel consumption and emissions.

With the SLS AMG E-CELL, Mercedes-AMG is providing a glimpse of its latest development project – a powerful and locally emission-free super sports car. Finished in fluorescent "AMG lumilectric magno" paint, the gullwing offers the prospect of a possible small series production run and at the same time reflects the innovative strength and development competence of the AMG performance brand.

"We take social responsibility very seriously and with the SLS AMG E-CELL we are demonstrating a further milestone in our "AMG Performance 2015" strategy. It is our goal to continually reduce the fuel consumption and emissions of new models in the coming years, while at the same time enhancing the core brand value of performance", explains Ola Källenius, chairman of the board (from 1 July 2010) of Mercedes-AMG GmbH. With the SLS AMG E-CELL, the performance brand of Mercedes-Benz is launching a totally innovative drive solution for super sports cars and as such is among the pioneers in this market segment.

The ground-breaking drive system of the technology vehicle boasts some outstanding features: powerful traction is provided by four synchronous electric motors with a combined peak output of 392 kW and a maximum torque of 880 Nm. The four compact electric motors each achieve a maximum rpm of 12,000/rpm and are positioned near to the wheels. As a result, compared with wheel-hub motors the unsprung masses are substantially reduced. One transmission per axle transmits the power.

Acceleration from zero to 100 km/h in 4 seconds

When it comes to dynamics, the electrically-powered SLS AMG makes a statement: the gullwing model accelerates from zero to 100 km/h in 4 seconds – which almost puts it on the same high level as the SLS AMG with 6.3-litre V8 engine developing 420 kW (571 hp), which can accelerate to 100 km/h in 3.8 seconds.

Further exciting touches are provided courtesy of the agile accelerator response and the straight-line performance: unlike the combustion engine, torque build-up with an electric motor is instantaneous – maximum torque is available virtually from a standstill. The spontaneous torque build-up and confident power delivery - which does not suffer from any interruption of tractive power - are combined with engine running characteristics which are totally free of vibration. Four motors, four wheels: the intelligent and permanent all-wheel drive of the electric SLS guarantees driving dynamics at the highest level, while at the same time providing the best possible active safety. Perfect traction is therefore ensured for all four driven wheels, whatever the weather conditions.

This very special gullwing is therefore able to "electrify" the driver with a completely unique, effortlessly superior and emotional super sports car driving sensation – and this is just at the prototype stage. In brief: the SLS AMG E-CELL is a true AMG too.

High-voltage lithium-ion battery provides 400 v and 40 Ah

The SLS AMG E-CELL drive incorporates a liquid-cooled high-voltage lithium-ion battery featuring a modular design with an energy content of 48 kWh and a capacity of 40 Ah. The maximum electric load potential of the battery, which consists of 324 lithium-ion polymer cells, is 480 kW, which is an absolute best value in the automotive sector. Another technical feature of this considerable performance is the intelligent parallel circuit of the individual battery modules – this also helps to maximise the safety, reliability and service life of the battery. The 400-volt battery is charged by means of targeted recuperation during braking whilst the car is being driven.

Key data at a glance:
SLS AMG E-CELL
Max Output 392 kW
Torque 880 Nm
0-100 km/h 4 seconds
Rated capacity 40 Ah (at 400 V)
Energy content 3 x 16 kWh = 48 kWh

High-performance electronic control as well as effective cooling of all components

A high-performance electronic control system converts the direct current from the high-voltage battery into three-phase alternating current which is required for the synchronous motors and regulates the energy flow for all operating conditions. Two low-temperature cooling circuits ensure that the four electric motors and the power electronics are maintained at an even operating temperature.

A separate low-temperature circuit is responsible for cooling the high-voltage lithium-ion battery. In low external temperatures, the battery is quickly brought up to operating temperature with the aid of an electric heating element. This helps to preserve the overall service life of the battery. In extremely high external temperatures, the cooling circuit for the battery can be additionally boosted with the aid of the air conditioning system.

Optimum weight distribution and low centre of gravity

The purely electric drive system was factored into the equation as early as the concept phase when the gullwing model was being developed. It is ideally packaged for the integration of the high-performance, zero-emission technology: by way of example, the four electric motors and the two transmissions can be positioned as close to the four wheels as possible and very low down in the vehicle. The same applies to the modular high-current battery, whose modules are located in front of the firewall, in the centre tunnel and behind the seats. Advantages of this solution include the vehicle's low centre of gravity and balanced weight distribution – ideal conditions for optimum handling, which the electrically-powered SLS AMG shares with its petrol-driven sister model.

The installation of the drive components required no changes whatsoever to the gullwing model's weight-optimised aluminium spaceframe. And there were just as few constraints when it came to maintaining the excellent level of passive safety and high degree of long-distance comfort that are hallmarks of Mercedes cars.

New front axle design with pushrod damper struts

The additional front-wheel drive called for a newly designed front axle: unlike the series production vehicle with AMG V8 engine, which has a double wishbone axle, the SLS AMG E-CELL features an independent multilink suspension with pushrod damper struts. This is because the vertically-arranged damper struts in the series SLS had to make way for the additional drive shafts. As is usual in a wide variety of racing vehicles, horizontal damper struts are now used, which are operated via separate push rods and transfer levers.

Thanks to this sophisticated front-axle design, which has already been tried and tested in the world of motor sport, the agility and driving dynamics of the electrically-powered SLS AMG attain the same high levels as the V8 variant. Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.

AMG ceramic composite brakes for perfect deceleration

The technology vehicle is slowed with the aid of AMG ceramic composite brakes, available as an optional extra for the series production model, which boast extremely short stopping distances, a precise actuation point and outstanding fade resistance, even in extreme operating conditions. The over-sized discs – measuring 402 x 39 mm at the front and 360 x 32 mm at the rear – are made of carbon fibre-strengthened ceramic, feature an integral design all round and are connected to an aluminium bowl in a radially floating arrangement.

The ceramic brake discs are 40 percent lighter in weight than the conventional, grey cast iron brake discs. The reduction in unsprung masses not only improves handling dynamics and agility, but also ride comfort and tyre grip. The lower rotating masses at the front axle also ensure a more direct steering response – which is particularly noticeable when taking motorway bends at high speed. The ABS and ESP® systems have been adapted to match the special application spectrum of the permanent all-wheel drive.

Full-LED headlamps and automatically extending front splitter

The purist, exciting design of the technology vehicle boasts a number of minor yet extremely effective modifications. At the front, the dynamically shaped full-LED headlamps with integrated daytime driving lights immediately catch the eye: they help to optimise the vehicle's energy efficiency, since they require less power compared with regular bi-xenon light systems. The wider radiator grille also has a new look, and now comes with transverse slats instead of a diamond-pattern grille. The air outlet openings on the bonnet and the vehicle sides have also been modified for enhanced aerodynamics. All trim and detachable parts, which are finished in chrome or silver shadow on the standard SLS AMG, are now finished in matt black.

The front apron has not only been brought further forward, but also helps to guarantee an optimised airflow in the area of the underbody. This improves air resistance while reducing downforce. An extendable front splitter enhances this effect: in parallel with the automatic rear spoiler, it extends downwards by seven centimetres at speeds above 120 km/h and helps to further accelerate the air which travels beneath the car. When it reaches the area of the rear axle, the air enters the rear diffusor which, due to the lack of an exhaust system, features a steeper angle, thus increasing downforce at the rear axle and in turn further enhancing the aerodynamic balance. The vehicle's AMG 10-spoke light-alloy wheels featuring a new, smooth-surfaced design are fitted with 265/35 R 19 (front) and 295/30 R 20 (rear) tyres.

Interior with new display instruments for electric drive

The transformation from petrol to electric super sports car also called for some specific changes to the interior. As a result, the AMG instrument cluster and centre console in particular both feature a new design. The new AMG instrument cluster provides information on speed, charge status of the battery and the estimated range. The newly designed centre console now houses a 25 cm touchscreen, which driver and passenger can use to conveniently operate all of the audio, climate and navigation functions, and also obtain information on the flow of power from the four electric motors.

The AMG Drive Unit, which is angled towards the driver, houses buttons for starting the motor, and the ESP® functions, the AMG memory function and the extendable front splitter and rear spoiler. Using three new buttons, the driver can switch simply between P, R and D. The park setting is also enabled automatically by switching the electric motors off.

The interior appointments are dominated by high-quality nappa leather in a black/white colour combination – it has been used not only on the sports seats, the performance leather/alcantara steering wheel and the door linings, but also on the broad centre tunnel which runs towards the back of the vehicle between the seats.

After the gullwing version, the open-top variant is the second car to be independently developed by AMG. The Coupé and Roadster concepts were created in parallel – which brought decisive advantages during the development process. During this approx. 3-year period for the SLS AMG Roadster, the engineers devoted particular attention to the aspects of bodyshell rigidity, driving dynamics, the soft top and NVH.

In the development process AMG also uses the extensive know-how of colleagues at Mercedes-Benz: as in the case of the Coupé, networked development with selected Mercedes-Benz development departments at the Mercedes Technology Center (MTC) in Sindelfingen was intensified.

The latest simulation software and extensive test drives on all continents make the 420 kW (571 hp) Roadster fit for its market launch in autumn 2011. The focus of the specialists in Affalterbach was particularly on bodyshell rigidity, handling dynamics, the soft top and NVH (Noise, Vibration and Harshness).

Rigidity, performance and a soft top

Naturally all these development aspects are closely linked, as Tobias Moers (44), head of overall development and member of the Executive Board at Mercedes-AMG, explains: "Without bodyshell rigidity there are no handling dynamics, and neither can the close fit of the soft top be guaranteed." As the Roadster variant was already taken into consideration during the conceptual phase for the SLS AMG, the lightweight and extremely rigid aluminium spaceframe was specified at a correspondingly early stage. Owing to the omission of a fixed roof and gullwing doors, it was necessary to design the side sills more robustly. But not primarily to meet the legal requirements in the event of a crash – in principle the Roadster would also manage this with the side sills of the Coupé. Studies and test drives showed that the driving dynamics could be improved even further with this measure, therefore side sills with greater wall thicknesses and chambers were developed for the open-top SLS AMG. Tobias Moers: "The SLS AMG Roadster is a super-sportscar – just like the Coupé. It goes without saying that AMG is also determined to achieve superior driving dynamics with this open-top variant."

In order to achieve handling dynamics identical to those of the Coupé, despite the lack of a fixed roof, the Roadster has two features designed to increase the rigidity of the bodyshell: the cross-member carrying the dashboard has additional supporting struts at the windscreen frame and at the centre tunnel, and a strut mounting stay between the soft top and the fuel tank makes the rear axle even more rigid. These features prevent unwanted vibrations from the start, and make the use of additional, weight-increasing vibration dampers such as those often employed by competitors unnecessary. As another important aspect, it is only if the bodyshell has the requisite rigidity that the soft top can be safely and reliably opened and closed electrohydraulically while on the move at up to 50 km/h. The side members of the front and rear modules in both SLS AMG models are identical. The bodyshell of the Roadster tips the scales at only 243 kilograms – which is comparable to the low, 241-kilogram weight of the SLS AMG Coupé's bodyshell.

Modifications to the aluminium spaceframe

Owing to the omission of the coupé roof and gullwing doors, the open-top SLS AMG has a reinforcing cross-member behind the seats which supports the fixed rollover protection system. Not forgetting the 250-watt subwoofer of the Bang&Olufsen BeoSound AMG high-end sound system: This is accommodated in the cross-member, as the Coupé-specific location on the parcel shelf is not available owing to the Roadster's soft top. One particular challenge was acoustic insulation of the cross-member, which acts as a subwoofer housing for the two 165-millimetre speakers connected in series. Numerous improvements became necessary before the required listening pleasure was achieved. It was only with the help of a special bulkhead within the aluminium cross-member that all audiophile standards could be satisfied.

The three-layered fabric soft top of the SLS AMG Roadster, which is deposited behind the seats in a Z-formation to save space, is also an aspect relevant to handling dynamics. This weight-optimised, combined magnesium/steel/ aluminium construction ensures a low centre of gravity and is designed for speeds up to the maximum of 317 km/h (electronically limited). Whether open or closed, even at top speed there must be no intrusive flapping, booming, hissing, clattering, whistling or howling. Likewise the push-on glass draught-stop and the panelling in the interior, on the soft top and along the beltline must be vibration-free. Nothing must be allowed to compromise the open-air enjoyment. The basis for verified, customer-compatible results in extreme conditions is provided by precisely defined test drives on the high-speed tracks in Papenburg, Nardo (Italy) and Idiada (Spain).

The excellent acoustics – which AMG engineers have naturally also verified with sophisticated measuring technology – also benefit from another special feature, namely the seamless, bonded-in rear window of single-layer safety glass. A special production process not only ensures a smooth transition between the outer skin of the soft top and the glass, as the sum of these design measures also leads to low wind noise when the roof is closed – at any speed.

125 years of experience

Ensuring that the soft top is wind and waterproof is a complex undertaking, and AMG and Mercedes-Benz have used the enormous experience gained during 125 years of innovation. There have always been open-top vehicles in the history of Mercedes-Benz – and unlike in the case of many competitors, in an uninterrupted sequence.

Every soft top is different, however, and even objectives already defined become more ambitious over time. The five challenges to which the AMG developers of the SLS AMG Roadster gave great attention and commitment were water, sand, dust, heat and cold. One special feature of the compact soft top is the continuous water pocket: this is attached below the soft top to catch rainwater and direct it down to the underbody via two apertures on each side.

All the development aspects of a vehicle which involve flexible deformation are always very complex. Simulations can sometimes lead to false conclusions, and do not always provide the most cost-effective solution. Classic test procedures often help to achieve rapid results. Development project manager Holger Strahl (34): "In this field it is not possible to simulate everything with CAD, and it becomes a matter of trying out, driving, testing and improving. The solution finally approved must also be suitable for series production, of course. Our specialist departments and the overall development team work together very closely in their common search for the perfect solution." He also adds: "There is no such thing as the second-best alternative for AMG."

Endurance trial as a final quality check

All the optimisation stages have been absolved, and the production tests at the Mercedes-Benz plant in Sindelfingen have been successful, but the developers have still not reached their goal. The quality of the overall vehicle is now the focus of the accompanying endurance trials. These simulate an entire vehicle life under the toughest conditions in accelerated test cycles. The aim is to verify the level of maturity before production of customer vehicles commences.

This is an extensive and tightly scheduled programme, and for many an AMG engineer it will only begin to lose its immediacy at the world premiere on 13 September 2011, when the new SLS AMG Roadster is presented to a barrage of media attention at the International Motor Show in Frankfurt/Main.

The new Mercedes-Benz SLS AMG GT boasts enhanced driving dynamics and even better race track performance. With a maximum output of 435 kW (591 hp), the optimised AMG SPEEDSHIFT DCT 7-speed sports transmission and the redeveloped AMG RIDE CONTROL Performance suspension, the SLS AMG GT – which is available both as a Coupé and a Roadster – has raised the bar even higher. As a further highlight, the new high-quality AMG designo Exclusive STYLE leather is now also available as an optional extra for all SLS AMG models. According to Tobias Moers, Board Member and Head of Overall Vehicle Development for Mercedes-AMG GmbH: "The new SLS AMG GT demonstrates the sort of potential which lies in AMG's super sports cars. With its even higher levels of performance, the SLS AMG GT excites out on the race track in particular by providing an emotionally enjoyable and passionate driving experience."

Masculine and decidedly athletic: with darkened headlamps and tail lights as well as red-painted brake callipers, the new SLS AMG GT also features a unique look. The wing-shaped cross fins and the star recess in the radiator grille also retain a high-gloss finish, as do the exterior mirrors and the fins on the bonnet and wings. The AMG logo on the right of the boot lid also features the additional letters "GT".

One look at the technical specifications highlights the fact that AMG has succeeded in enhancing the dynamic profile of the SLS AMG GT even further. The maximum output of the AMG 6.3-litre V8 front mid-engine is 435 kW (591 hp) at 6800 rpm, while the maximum torque is 650 Nm at 4750 rpm. The SLS AMG GT accelerates from zero to 100 km/h in 3.7 seconds, and can reach a speed of 200 km/h in 11.2 seconds.

Mercedes-AMG has achieved the output of 435 kW (591 hp) through in-engine dethrottling measures in conjunction with an increase in peak pressure. The GT version of the AMG 6.3-litre eight-cylinder front mid-engine responds with even greater agility to accelerator pedal movements and excites with even sportier-tuned performance characteristics. The AMG SPEEDSHIFT DCT 7‑speed sports transmission located on the rear axle is more direct and spontaneous in the manual "M" transmission mode: thanks to newly developed gear change functions and optimised transmission control, it has been possible to shorten reaction time significantly. When changing gears manually via the real metal shift paddles on the AMG Performance steering wheel, control commands right through to the noticeable gear change are executed markedly quicker than previously – all of which is ideal when striving to achieve some ambitious lap times on a closed-off race circuit.

The reaction time experienced by the driver is made even more emotional as a result of more distinct gear changes. The automatic double-declutching function when shifting down is also more pronounced in the SLS AMG GT. Due to an increase in engine torque in manual mode, the shift procedure is even quicker than previously – and is accompanied by some passionate acoustic feedback for the driver. Overall, the optimisation of the dual clutch transmission complements the sporty nature of the SLS AMG GT perfectly.

New AMG RIDE CONTROL Performance suspension

It is not just the AMG 6.3-litre V8 front mid-engine and the optimised dual clutch transmission which are responsible for increasing the driving dynamics of the SLS AMG GT. The newly developed AMG RIDE CONTROL Performance suspension also enhances the vehicle's sportiness. In the case of the SLS AMG GT, Mercedes-AMG has combined the sophisticated suspension layout with twin aluminium wishbones all round and variable, electronically controlled damping. Compared with the AMG RIDE CONTROL sports suspension, the new AMG RIDE CONTROL Performance suspension features basically stiffer spring/damper tuning and dispenses with "Comfort" mode.

"Sport" mode is recommended as the optimum setting for undulating road surfaces and routes requiring increased suspension travel – such as found on rural roads or the legendary North Loop of the Nürburgring, for example. The control algorithm of the AMG RIDE CONTROL Performance suspension reacts best to fluctuations in the road surface with a tendency towards lower damper force levels. The resulting effect is the best possible performance by effectively preventing rolling and pitching and providing excellent contact with the road when adopting a sporty driving style. The enhanced driving dynamics and even better race track performance are measureable: as part of an internal comparison with the SLS AMG, the SLS AMG GT was able to achieve faster lap times on a race track.

"Sport plus" provides higher damping forces and features specific control algorithms which have been adjusted for a decidedly sporty driving style on routes with a level road surface – such as when trying to achieve ambitious lap times on a race circuit such as Hockenheim.

Selection of suspension modes via the AMG DRIVE UNIT

Depending on the driving conditions, speed and vehicle load, the AMG RIDE CONTROL Performance suspension adjusts the damping characteristics at lightning speed and automatically reduces the roll angle of the body. The two modes can be selected via a button on the AMG DRIVE UNIT. The activated suspension mode is indicated by means of indicator lamps on the button and the display in the AMG main menu.

As standard, the vehicle comes with 265/35 R 19 tyres on the front and 295/30 R 20 tyres on the rear, fitted to weight-optimised AMG forged light-alloy wheels featuring a 10-spoke design and painted in matt black and with a high-sheen finish. Three additional AMG light-alloy wheels are also available.

Interior with consistently sporty highlights

The interior too features a consistently sporty design: the SLS AMG GT combines the high-quality, exclusive ambience of a true AMG model with the functional atmosphere of a racing car. The sports seats not only have an embossed badge on the head restraints, but the centre sections are also finished in Alcantara®. Continuing the theme, Alcantara® is also found on the door centre panels. The black interior appointments are combined with red seat belts, plus all of the contrasting stitching on the AMG sports seats, the centre console and the door panel lining is finished in red too. The floor mats also feature red edging.

The high-gloss black AMG trim on the centre console and door panel lining perfectly matches the high-gloss black edging on the adjustable cross-shaped air vents and the high-gloss real metal insert on the AMG Performance steering wheel with flattened lower section. The grip area is finished in Alcantara®, while the upper part of the steering wheel has a red 12 o'clock marking. The AMG instrument cluster is fitted with a black faceplate – at the top it also features an upshift indicator with seven LEDs.

AMG designo Exclusive STYLE leather for all SLS AMG models

Also now available for all SLS AMG models is a new, highly exclusive optional extra in the form of AMG designo Exclusive STYLE leather. This high-quality extra is available in single or two-tone finishes and comprises distinctive upholstery with a diamond design with contrasting stitching. The lavishly finished diamond design features not only on the AMG sports seats, but also on the door centre panels.

Other highlights include a designo leather finish for the entire dashboard, the beltlines and door armrests, the handrest on the centre console, AMG floor mats in black with porcelain leather edging, roof lining in Alcantara® porcelain, and the parcel shelf (Coupé) or roll-over bar (Roadster). Seams finished in contrasting colours create exciting highlights and underscore the high-quality, hand-finished nature of this new leather package. Available colour combinations include mocha brown/porcelain, titanium grey pearl/porcelain and mystic red/porcelain. The colours of all of the elements of the interior appointment such as the roof liner, carpet and centre console are perfectly matched to each other.
Other attractive optional extras for all SLS AMG models include (extract):

AMG carbon-fibre exterior mirrors
AMG carbon-fibre engine compartment cover
AMG Interior Carbon-Fibre package (carbon-fibre trim, trim on seat backrest and side, door sill panels)
AMG ceramic high-performance composite braking system
AMG Performance Media
AMG 10-spoke forged wheels in other colour variants
AMG carbon-fibre trim
AIRSCARF (Roadster)
Bang & Olufsen BeoSound AMG surround sound system

The market launch of the SLS AMG GT will commence in October 2012. An overview of the pricing for Germany is as follows (incl. 19% VAT):

SLS AMG GT 204,680 euros
SLS AMG GT Roadster 213,010 euros
AMG designo Exclusive STYLE leather 5771.50 euros
Six SLS AMG models

The SLS AMG Coupé presented in 2009 was the first vehicle developed independently by Mercedes-AMG. The spectacular gullwing model was followed in 2011 by the open-top SLS AMG Roadster as well as the SLS AMG GT3 customer sports racing car. Having secured 26 victories and the FIA GT3 European championship title, the SLS AMG GT3 was the most successful newcomer to the world of motorsport in 2011. With the new SLS AMG GT, available as a Coupé and Roadster, the model range has now grown to five variants. The sixth model is expected to follow in 2013 in the form of the new Mercedes-Benz SLS AMG Electric Drive: Mercedes-AMG is planning an exclusive series-production run of the purely electric-driven super sports car.

The specific assembly area for the SLS AMG is located in the largest Mercedes-Benz production plant in Sindelfingen. The AMG 6.3-litre V8 engine comes directly from the AMG engine workshop in Affalterbach, where it is hand-assembled according to the traditional "one man, one engine" philosophy.

40 significant awards for the Mercedes-Benz SLS AMG

The SLS AMG has succeeded in winning numerous comparison tests against a host of international competitors conducted by the international specialist media – both as the gullwing model and the Roadster. Since its world premiere at the IAA International Motor Show in Frankfurt in 2009 and the presentation of the SLS AMG Roadster in May 2011, the super sports car from Mercedes-AMG has picked up a total of 40 awards – including such major prizes as the "German Design Award", the "Red Dot Design Award", the "Golden Steering Wheel 2009", "Classic of the Future", "Sports Car of the Year", "Best Performance Car" and "Legends on Wheels".

With the new SLS AMG Coupé Electric Drive, Mercedes-AMG is entering a new era: the locally emission-free super sports car featuring advanced technology from the world of Formula 1 is the most exclusive and dynamic way in which to drive an electric car. The most powerful AMG high-performance vehicle of all time has four electric motors producing a total output of 552 kW and a maximum torque of 1000 Nm. As a result, the gullwing model has become the world's fastest electrically-powered series production vehicle: the SLS AMG Coupé Electric Drive accelerates from zero to 100 km/h in 3.9 seconds.

A new dimension of driving performance – a convincing synonym for the AMG brand promise are the outstanding driving dynamics which come courtesy of AMG Torque Dynamics as well as torque distribution to individual wheels, which is made possible by means of wheel-selective all-wheel drive. The most "electrifying" gullwing model ever has been developed in-house by Mercedes-AMG GmbH. The high-voltage battery for the SLS AMG Coupé Electric Drive is the result of cooperation between Mercedes-AMG and Mercedes AMG High Performance Powertrains in Brixworth (GB). This is an area in which the British Formula 1 experts were able to contribute their extensive know-how with KERS hybrid concepts.

"The SLS AMG Coupé Electric Drive is setting new standards for cars with electric drives. As the most powerful gullwing model ever, it is also representative of the enduring innovational strength of Mercedes-AMG. Our vision of the most dynamic electric vehicle has become a reality. With the help of our colleagues at Mercedes AMG High Performance Powertrains in Brixworth, we are bringing exciting advanced technology from the world of Formula 1 to the road", according to Ola Källenius, Chairman of the Board of Management of Mercedes-AMG GmbH.

Pioneering, visionary, electrifying: the powerful and locally emission-free super sports car with electric drive also embodies the development competence of Mercedes-AMG GmbH. With this innovative and unique drive solution, AMG - as the performance brand of Mercedes-Benz - is demonstrating its technological leadership in this segment. The SLS AMG Coupé Electric Drive is aimed at technology-minded super sports car fans who are open to new ideas and enthusiastic about ambitious high-tech solutions for the future of motoring.

Enormous thrust thanks to 1000 Nm of torque

The pioneering drive package in the SLS AMG Coupé Electric Drive is impressive and guarantees a completely innovative and electrifying driving experience: enormous thrust comes courtesy of four synchronous electric motors providing a combined maximum output of 552 kW and maximum torque of 1000 Nm. The very special gullwing model accelerates from zero to 100 km/h in 3.9 seconds, and can reach a top speed of 250 km/h (electronically limited). The agile response to accelerator pedal input and the linear power output provide pure excitement: unlike with a combustion engine, the build-up of torque is instantaneous with electric motors – maximum torque is effectively available from a standstill. The spontaneous build-up of torque and the forceful power delivery without any interruption of tractive power are combined with completely vibration-free engine running characteristics.

The four compact permanent-magnet synchronous electric motors, each weighing 45 kg, achieve a maximum individual speed of 13,000 rpm and in each case drive the 4 wheels selectively via a axially-arranged transmission design. This enables the unique distribution of torque to individual wheels, which would normally only be possible with wheel hub motors which have the disadvantage of generating considerable unsprung masses.

Powerful, voluminous, dynamic, emotional and authentic: the characteristic sound of the SLS AMG Coupé Electric Drive embodies the sound of the 21st century. After an elaborate series of tests as well as numerous test drives, the AMG experts have created a sound which captures the exceptional dynamism of this unique super sports car with electric drive. Starting with a characteristic start-up sound, which rings out on pressing the "Power" button on the AMG DRIVE UNIT, the occupants can experience a tailor-made driving sound for each driving situation: incredibly dynamic when accelerating, subdued when cruising and as equally characteristic during recuperation. The sound is not only dependent on road speed, engine speed and load conditions, but also reflects the driving situation and the vehicle's operating state with a suitable driving noise. Perfect feedback for the driver is guaranteed thanks to a combination of the composed sound, the use of the vehicle's existing inherent noises and the elimination of background noise – this is referred to by the experts as "sound cleaning". The impressive sound comes courtesy of the standard sound system with eleven loudspeakers.

[u\Advanced Formula 1 technology: high-voltage lithium-ion battery[/u]

Battery efficiency, performance and weight: in all three areas Mercedes-AMG is setting new standards. The high-voltage battery in the SLS AMG Coupé Electric Drive boasts an energy content of 60 kWh, an electric load potential of 600 kW and weighs 548 kg – all of which are absolute best values in the automotive sector. The liquid-cooled lithium-ion high-voltage battery features a modular design and a maximum voltage of 400 V.

Advanced technology and know-how from the world of Formula 1 have been called on during both the development and production stages: the battery is the first result of the cooperation between Mercedes-AMG GmbH in Affalterbach and Mercedes AMG High Performance Powertrains Ltd. Headquartered in Brixworth in England, the company has been working closely with Mercedes-AMG for a number of years. F1 engine experts have benefited from its extensive expertise with the KERS hybrid concept, which made its debut in the 2009 Formula 1 season. At the Hungarian Grand Prix in 2009, Lewis Hamilton achieved the first historic victory for a Formula 1 vehicle featuring KERS hybrid technology in the form of the Mercedes-Benz KER System. Mercedes AMG High Performance Powertrains supplies the Formula 1 teams MERCEDES AMG PETRONAS, Vodafone McLaren Mercedes and Sahara Force India with Mercedes V8 engines and the KERS.

The high-voltage battery consists of 12 modules each comprising 72 lithium-ion cells. This optimised arrangement of a total of 864 cells has benefits not only in terms of best use of the installation space, but also in terms of performance. One technical feature is the intelligent parallel circuit of the individual battery modules – this helps to maximise the safety, reliability and service life of the battery. As in Formula 1, the battery is charged by means of targeted recuperation during deceleration whilst the car is being driven.

High-performance control as well as effective cooling of all components

A high-performance electronic control system converts the direct current from the high-voltage battery into the three-phase alternating current which is required for the synchronous motors and regulates the energy flow for all operating conditions. Two low-temperature cooling circuits ensure that the four electric motors and the power electronics are maintained at an even operating temperature. A separate low-temperature circuit is responsible for cooling the high-voltage lithium-ion battery. In low external temperatures, the battery is quickly brought up to optimum operating temperature with the aid of an electric heating element. In extremely high external temperatures, the cooling circuit for the battery can be additionally boosted with the aid of the air conditioning. This also helps to preserve the overall service life of the battery system.

Quick charge function via special wall box

Ideally the SLS AMG Coupé Electric Drive is charged with the aid of a so-called wall box. Installed in a home garage, this technology provides a 22 kW quick-charge function, which is the same as the charging performance available at a public charging station. A high-voltage power cable is used to connect the vehicle to the wall box, and enables charging to take place in around three hours. Without the wall box, charging takes around 20 hours. The wall box is provided as an optional extra from Mercedes-AMG in cooperation with SPX and KEBA, two suppliers of innovative electric charging infrastructures for the automotive industry.

Eight-stage design for maximum safety

To ensure maximum safety, the SLS AMG Coupé Electric Drive makes use of an eight-stage safety design. This comprises the following features:
1. all high-voltage cables are colour-coded in orange to prevent confusion
2. comprehensive contact protection for the entire high-voltage system
3. the lithium-ion battery is liquid-cooled and accommodated in a high-strength aluminium housing within the carbon-fibre zero-intrusion cell
4. conductive separation of the high-voltage and low-voltage networks within the vehicle and integration of an interlock switch
5. active and passive discharging of the high-voltage system when the ignition is switched to "off"
6. in the event of an accident, the high-voltage system is switched off within fractions of a second
7. continuous monitoring of the high-voltage system for short circuits with potential compensation and insulation monitors
8. redundant monitoring function for the all-wheel drive system with torque control for individual wheels, via several control units using a variety of software

By using this design, Mercedes-AMG ensures maximum safety during production of the vehicle and also during maintenance and repair work. Of course the SLS AMG Coupé Electric Drive also meets all of the statutory and internal Mercedes crash test requirements.

All-wheel drive with AMG Torque Dynamics enables new levels of freedom

Four motors, four wheels – the intelligent and permanent all-wheel drive of the SLS AMG Coupé Electric Drive guarantees driving dynamics at the highest level, while at the same time providing the best possible active safety. Optimum traction of the four driven wheels is therefore ensured, whatever the weather conditions. According to the developers, the term "Torque Dynamics" refers to individual control of the electric motors, something which enables completely new levels of freedom to be achieved. The AMG Torque Dynamics feature is permanently active and allows for selective distribution of forces for each individual wheel. The intelligent distribution of drive torque greatly benefits driving dynamics, handling, driving safety and ride comfort. Each individual wheel can be both electrically driven and electrically braked, depending on the driving conditions, thus helping to

• optimise the vehicle's cornering properties,
• reduce the tendency to oversteer/understeer,
• increase the yaw damping of the basic vehicle,
• reduce the steering effort and steering angle required,
• increase traction,
• and minimise ESP® and ASR intervention.

The AMG Torque Dynamics feature boasts a great deal of variability and individuality by offering three different transmission modes:

• Comfort (C): comfortable, forgiving driving characteristics
• Sport (S): sporty, balanced driving characteristics
• Sport plus (S+): sporty, agile driving characteristics

AMG Torque Dynamics enables optimum use of the adhesion potential between the tyres and the road surface in all driving conditions. The technology allows maximum levels of freedom and as such optimum use of the critical limits of the vehicle's driving dynamics. Outstanding handling safety is always assured thanks to the two-stage Electronic Stability Program ESP®.

"AMG Lightweight Performance" design strategy

The trailblazing body shell structure of the SLS AMG Coupé Electric Drive is part of the ambitious "AMG Lightweight Performance" design strategy. The battery is located within a carbon-fibre monocoque which forms an integral part of the gullwing model and acts as its "spine". The monocoque housing is firmly bolted and bonded to the aluminium spaceframe body. The fibre composite materials have their roots in the world of Formula 1, among other areas. The advantages of CFRP (carbon-fibre reinforced plastic) were exploited by the Mercedes-AMG engineers in the design of the monocoque. These include their high strength, which makes it possible to create extremely rigid structures in terms of torsion and bending, excellent crash performance and low weight. Carbon-fibre components are up to 50 percent lighter than comparable steel ones, yet retain the same level of stability. Compared with aluminium, the weight saving is still around 30 percent, while the material is considerably thinner. The weight advantages achieved through the carbon-fibre battery monocoque are reflected in the agility of the SLS AMG Coupé Electric Drive and, in conjunction with the wheel-selective four-wheel drive system, ensure true driving enjoyment. The carbon-fibre battery monocoque is, in addition, conceived as a "zero intrusion cell" in order to meet the very highest expectations in terms of crash safety. It protects the battery modules inside the vehicle from deformation or damage in the event of a crash.

The basis for CFRP construction is provided by fine carbon fibres, ten times thinner than a human hair. A length of this innovative fibre reaching from here to the moon would weigh a mere 25 grams. Between 1000 and 24,000 of these fibres are used to form individual strands. Machines then weave and sew them into fibre mats several layers thick, which can be moulded into three-dimensional shapes. When injected with liquid synthetic resin, this hardens to give the desired structure its final shape and stability.

Optimum weight distribution and low centre of gravity

The purely electric drive system was factored into the equation as early as the concept phase when the super sports car was being developed. It is ideally packaged for the integration of the high-performance, zero-emission technology: by way of example, the four electric motors and the two transmissions can be positioned as close to the four wheels as possible and very low down in the vehicle. The same applies to the modular high-voltage battery. Advantages of this solution include the vehicle's low centre of gravity and balanced weight distribution – ideal conditions for optimum handling, which the electrically-powered gullwing model shares with its petrol-driven sister model.

New front axle design with pushrod damper struts

The additional front-wheel drive called for a newly designed front axle: unlike the series production vehicle with AMG V8 engine, which has a double wishbone axle, the SLS AMG Coupé Electric Drive features an independent multi-link suspension with pushrod damper struts. This is because the vertically-arranged damper struts had to make way for the additional drive shafts. As is usual in a wide variety of racing vehicles, horizontal damper struts are now used, which are operated via separate push rods and transfer levers. Thanks to this sophisticated front-axle design, which has already been tried and tested in the world of motorsport, the agility and driving dynamics of the SLS AMG Coupé Electric Drive attain the same high levels as the V8 variant. Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.

AMG ceramic composite brakes for perfect deceleration

The SLS AMG Coupé Electric Drive is slowed with the aid of AMG high-performance ceramic composite brakes, which boast direct brake response, a precise actuation point and outstanding fade resistance, even in extreme operating conditions. The over-sized discs – measuring 402 x 39 mm at the front and 360 x 32 mm at the rear – are made of carbon fibre-strengthened ceramic, feature an integral design all round and are connected to an aluminium bowl in a radially floating arrangement.

The ceramic brake discs are 40 percent lighter in weight than the conventional, grey cast iron brake discs. The reduction in unsprung masses not only improves handling dynamics and agility, but also ride comfort and tyre grip. The lower rotating masses at the front axle also ensure a more direct steering response – which is particularly noticeable when taking motorway bends at high speed.

Exclusive, high-quality design and appointments

Visually, the multi-award-winning design of the SLS AMG is combined with a number of specific features which are exclusive to the Electric Drive variant. The front apron has a striking carbon-look CFRP front splitter which generates downforce on the front axle. The radiator grille and adjacent air intakes adorn special areas painted in the vehicle colour and with bionic honeycomb-shaped openings. They are not only a visual highlight but, thanks to their aerodynamically optimised design, also improve air flow over the cooling modules mounted behind them. Darkened headlamps also impart a sense of independence to the front section. Viewed from the side, the "Electric Drive" lettering stands out on the vehicle side, as do the AMG 5-twin-spoke light-alloy wheels with their specific paint design. The SLS AMG Electric Drive comes as standard with 265/35 R 19 tyres on the front and 295/30 R 20 tyres on the rear. The overall look is rounded off to dynamic effect by the new diffuser-look rear apron, and the darkened rear lamps. One feature reserved exclusively for the SLS AMG Coupé Electric Drive is the "AMG electricbeam magno" matt paint finish. A choice of five other colours is available at no extra cost.

When the exterior colour AMG electricbeam magno is chosen, the high-quality, sporty interior makes use of this body colour for the contrasting stitching – the stitching co-ordinates perfectly with designo black Exclusive leather appointments. AMG sports seats and numerous carbon-fibre trim elements in the interior underscore the exclusive and dynamic character of what is currently the fastest electric car. Behind the new AMG Performance steering wheel there is a newly designed AMG instrument cluster: instead of a rev counter, there is a power display providing information on the power requirements, recuperation status, transmission modes and battery charge.

AMG Performance Media as standard

The AMG DRIVE UNIT comprises the electronic rotary switch for selecting the three transmission modes of "C" (Controlled Efficiency), "S" (Sport) and "S+" (Sport plus), which the driver can use to specify different performance levels from the electric motors, which in turn also changes the top speed and accelerator pedal response. Behind the buttons for "power" and "ESP On/Off", there are also buttons for AMG Torque Dynamics and AMG Setup.

In addition to carbon-fibre exterior mirrors, AMG carbon-fibre engine compartment cover, COMAND APS, Media Interface, Blind Spot Assist and reversing camera, the standard equipment also includes the AMG Performance Media system. Besides full high-speed mobile internet access, the system provides information on engine performance, lateral and longitudinal acceleration, tyre pressure, vehicle setup and lap times, as well displaying a variety of additional information such as:

• vehicle energy flow
• battery charge status
• burrent range
• AMG Torque Dynamics
• temperatures of the battery and motors
• energy consumption kWh/100 km

The Mercedes-Benz SLS AMG Coupé Electric Drive will be celebrating its market launch in 2013. The price in Germany (incl. 19% VAT) will be:

SLS AMG Coupé Electric Drive: 416,500 euros

Mercedes-AMG presents the high-end super sports car version of the gull-wing model, the new SLS AMG Coupé Black Series. Inspired by the SLS AMG GT3 racing version, the fifth Black Series model from Mercedes-AMG boasts a fascinating mix of breath-taking design, outstanding driving dynamics and uncompromising lightweight construction in accordance with the "AMG Lightweight Performance" strategy. With a DIN kerb weight of 1550 kilograms, the SLS AMG Black Series achieves a power/weight ratio of 2.45 kg/hp. The AMG 6.3-litre V8 engine generates a power output of 464 kW (631 hp) at 7400 rpm and accelerates the most dynamic gull-wing model of all time to 100 km/h in 3.6 seconds. The coil-over AMG RIDE CONTROL performance suspension, the AMG ceramic high-performance composite brake system and the weight-optimised forged AMG light-alloy wheels with newly developed sports tyres combine with the electronically controlled AMG rear-axle differential lock and the AMG SPEEDSHIFT DCT 7-speed sports transmission featuring uncompromisingly emotional shift and response times to raise the SLS AMG Black Series to a new level. The AMG Aerodynamics package is optionally available to further boost the vehicle's driving dynamics.

Black Series – a name that resonates with automobile experts and enthusiasts. Following on from the SLK 55 AMG Black Series from 2006, the CLK 63 AMG Black Series (2007), the SL 65 AMG Black Series (2008) and the C 63 AMG Coupé Black Series (2011), the fifth exponent sees the Black Series entering a new dimension with the gull-wing model.

"The new SLS AMG Coupé Black Series is a perfect study in the one hundred percent transfer of technology and engineering from motorsport to the road. We have drawn inspiration from the worldwide success of the SLS AMG GT3 customer sport racing car on both a conceptual and a technological level. Boasting numerous lightweight components and fascinating driving dynamics, our fifth Black Series model guarantees pure, unadulterated 'Driving Performance'. The SLS AMG Coupé Black Series is the ultimate choice for fast laps and highly emotional driving experiences", says Ola Källenius, Chairman of Mercedes-AMG GmbH.

"The most dynamic gull-wing model of all time goes by the name of the SLS AMG Coupé Black Series. Fans of high-performance super sports cars will be fascinated by its high-tech package. The basis for passionate performance and supreme driving dynamics is provided by numerous new developments in the area of the engine, power transmission, suspension and aerodynamics – also according top priority to our "AMG Lightweight Performance" strategy. Great efforts in the field of lightweight design have resulted in a DIN kerb weight of 1550 kilograms," notes Tobias Moers, head of overall vehicle development and member of the management board of Mercedes-AMG GmbH.

AMG 6.3-litre V8

The uprated AMG 6.3-litre V8 engine generating a power output of 464 kW (631 hp) and 635 Newton metres of torque is a byword for thrilling driving dynamics, making the SLS AMG Coupé Black Series the most powerful AMG high-performance automobile with a combustion engine at present. Only the SLS AMG Coupé Electric Drive with a maximum output of 552 kW comes with greater power reserves.

The SLS AMG Coupé Black Series accelerates to 100 km/h in 3.6 seconds. The top speed stands at 315 km/h. The additional 44 kW (60 hp) of power in comparison to the 420 kW (571 hp) offered by the SLS AMG has been achieved by the following measures:

*Increase in maximum engine speed from 7200 to 8000 rpm
*Fully revised high-speed valve train with modified camshafts, adapted cam geometry and optimised bucket tappets featuring a special coating which is otherwise exclusive to racing vehicles
*Modification of the intake air ducting: derestriction and adaptation to the new maximum engine speed
*Adaptation of the engine application and increase in peak pressure

The engineers at Mercedes-AMG have further optimised the crank assembly in the interests of optimum stability in tough racing use. The measures carried out here include modified oil bores in the crankshaft, new crankshaft bearings, a new oil pump and high-strength screwed connections for the conrods. The entire water and oil cooling system for the engine and transmission has also undergone further optimisation. The AMG V8 engine in the SLS AMG Coupé Black Series is additionally provided with a special support system. A gas-filled strut braces the eight-cylinder engine on the body, effectively eliminating undesired load change reactions in highly dynamic driving on the race track. The AMG 6.3-litre V8 engine is hand-built at the AMG hand-finishing section in Affalterbach, according to the philosophy "one man, one engine". This hand-made quality is confirmed by the black AMG engine badge bearing the responsible engine fitter's signature which is a hallmark of the Black Series models.

The eight-cylinder naturally aspirated engine installed as a front mid-engine behind the front axle boasts racing car-style response and livelier than ever revving ability. The powerful AMG V8 engine's race track aspirations are also apparent in its sound: the newly designed AMG sports exhaust system, produced in titanium for the first time, features distinctive centre and rear mufflers which provide for a more powerful and even more striking engine sound. The switch from steel to titanium has spawned substantial weight savings: at just under 17 kilograms, the new AMG sports exhaust system is around 13 kilograms lighter than its predecessor. The new system features the performance-enhancing fan-type exhaust pipes which have been in use to date.

AMG Lightweight Performance

Lightweight at its core: with a kerb weight of 1550 kilograms (DIN), the new SLS AMG Coupé Black Series is not only 70 kilograms lighter than the SLS AMG, but also attains the best power/weight ratio of all AMG Black Series vehicles to date by far. The figure of 2.45 kg/hp will also bear up to comparison in the super sports car scene. Such a ratio is made possible by systematic application of the "AMG Lightweight Performance" strategy. Numerous body elements, such as the bonnet, the rear panel behind the AMG sports bucket seats, the diagonal braces on the underbody and the torque tube between engine and transmission consist entirely of the motorsport material carbon fibre (carbon fibre-reinforced plastic). In contrast to its 26.6-kilogram counterpart with sand-cast aluminium housing, the carbon-fibre torque tube weighs only 13.3 kilograms. As previously, power transmission between the engine and the dual clutch transmission (transaxle principle) which is flange-mounted on the rear axle is effected by means of a carbon fibre-reinforced plastic (CRP) drive shaft weighing only 4.7 kilograms. A number of parts on the aluminium spaceframe have also been replaced by CRP components. A lithium-ion battery which is used in place of the conventional starter battery saves a further eight kilograms.

Dual clutch transmission

The overall power transmission system is also a major contributory factor to the outstanding driving dynamics of the SLS AMG Coupé Black Series. The AMG SPEEDSHIFT DCT 7-speed sports transmission is installed ten millimetres lower in order to achieve a lower centre of gravity for the vehicle and is braced against the body by gas-filled struts in order to avoid stress cycles. The dual clutch transmission features four driving modes (C, S, S+ and M). "Sport plus" and "Manual" in particular provide for markedly sportier performance than with the SLS AMG and SLS AMG GT models. In addition to an increase in shifting speed, the reduced response time to shift commands from the driver and the shifting hardness provide for pure dynamism.

An even more thrilling feature is the automatic double-declutching function during downshifting: the throttle blips when shifting gear are more pronounced and more strikingly audible than ever, due to the AMG titanium sports exhaust system. There is also a new temporary M mode. In C, S or S+ mode, this enables the driver to activate manual mode without having to remove a hand from the steering wheel, by pressing the "up" or "down" shift paddle once. In temporary M mode the driver experiences the dynamism and performance of gear-shifting in manual mode in all of the automatic driving programmes, with automatic up- and down-shifting into the bargain. This allows the driver to devote his full attention to the vehicle's impressive performance.

Electronic AMG rear-axle

A newly developed, electronically controlled AMG rear-axle differential lock with a shorter rear-axle ratio replaces the mechanical variant; it is integrated in the compact transmission housing. This system operates with a variable locking effect in acceleration and deceleration mode; in addition, the electronics respond more sensitively than to date, enabling excellent traction for the driven wheels at all friction levels. The electronic AMG rear-axle differential lock also benefits driving safety: in slaloms or when changing lane at high speeds the system has a stabilising effect, as it is able to attenuate the vehicle's yaw rate around its vertical axis. The standard-fit 3-stage ESP® system featuring the functions "ESP ON", "ESP SPORT Handling Mode" and "ESP OFF" is precision-tuned to the electronic AMG rear-axle differential lock. The same applies to the RACE START function, which provides for perfect traction when accelerating from a standing start in conjunction with the electronic differential lock.

AMG RIDE CONTROL

The chassis and suspension of the SLS AMG Coupé Black Series are also new. The basic layout with double wishbones all-round in aluminium remains unchanged, but barely a component has gone untouched in the interests of much enhanced race track performance.

The new developments in detail:
*AMG RIDE CONTROL performance suspension with tauter basic tuning and electronically controlled two-stage damping (Sport, Sport +) for individual adjustment to the preferred personal driving style
*Coil-over spring retainers to enable adjustment of wheel loads for personal race track set-ups
*Elastokinematics 50 / 42% more rigid (front/rear axle) for greater stability in fast double bends
*Track width increased by 20 / 24 millimetres (front/rear axle) for added grip in fast bends
*New wheel carriers on front axle and new front stabiliser tuning for added grip, reduced roll angle in fast cornering
*AMG 10-spoke light-alloy wheels, in particularly light forged design with optimised strength, painted matt black with high-sheen finish, dimensions: 10x19 at fron; 12x20 at rear. Weight saving: 4.0 kilograms
*Newly developed Michelin Pilot Sport Cup 2 sports tyres. Dimensions 275/35 R 19 at front and 325/30 R 20 at rear, for added grip and sporty cornering limit
*AMG speed-sensitive steering with newly defined power steering characteristic for optimum steering precision and outstanding control of the vehicle

Design inspired by the SLS AMG GT3

The design of the SLS AMG Coupé Black Series derives a special fascination from its similarity to the SLS AMG GT3 customer sport racing car. The gull-wing racing car developed in accordance with FIA GT3 rules has quickly become established as a serious contender among the super sports car elite. In the 2012 motorsport season the SLS AMG GT3 is competing in more than 15 series on four continents. The triple victory in the 24-hour Dubai race in January 2012, three driver and team titles in the FIA GT3 European Championship, the ADAC GT Masters and the FIA GT3 World Championship along with numerous places on the podium at various short-distance, 4- and 6‑hour races demonstrate the SLS AMG GT3's sporty performance in impressive style. To date, the car has notched up 37 victories in the 2012 season (as per 28 October 2012).

Wide flared wings with an added width of 13 mm (front) and 26 mm (rear) on each side create the necessary space for the 275 mm and 325 mm sports tyres. Darkened headlamps and black surrounds for the rear lights provide the SLS AMG Coupé Black Series with a muscular and aggressive look. The vehicle's aerodynamic balance is optimised by the front apron and rear apron with diffusor along with side sill panels in Black Series-specific design featuring carbon fibre-reinforced plastic front splitter, carbon inserts in the side sills and the rear apron made of carbon fibre. The enlarged air intakes with carbon-fibre flics additionally ensure an optimum air inflow into the cooling modules at the front.

As on the SLS AMG GT3, the carbon-fibre bonnet features a central air outlet. Apart from effectively discharging the engine heat, this outlet also increases downforce at the front axle and improves the Cd value. The wing-like cross-fin and the star recess in the radiator grille are finished in high-gloss black to match the exterior mirrors and the fins on the bonnet. The carbon-fibre insert on the sides with air outlet and a black fin is also reminiscent of the GT3; this feature also helps to reduce the temperature level in the engine compartment. The upshot is maximum stability, even in tough race track use.

Forged wheels in Black Series-specific design

A striking feature on the sides is the attractive integration of the side skirts, which combine with the side feature line in appealing fashion. The carbon elements fitted along the bottom at the sides continue the line of the carbon-fibre front splitter along to the rear. AMG forged wheels in a series-specific 10‑spoke design, painted in matt black with a high sheen finish, provide glimpses of the AMG ceramic high-performance composite brake system. AMG forged wheels in matt black with high-sheen rim flange are alternatively available.

The rear of the SLS AMG Coupé Black Series presents a brawny appearance on a par with that of the front end. The wide wings and the striking rear diffusor are the predominant features here. The diffusor extends beyond the profile of the rear apron and produces additional downforce at the rear axle. This results in greater driving stability at high speeds. Visible air openings behind black grilles serve to control the dischrage of hot air in the area of the AMG titanium sports exhaust system. The two sets of twin chrome tailpipes with a square cross-section provide a visual demonstration of the gull-wing super sports car's power and dynamism – an impression that is backed up by a corresponding sound. The exclusive AMG logo with contrasting Black Series lettering in black adds a discreet yet striking touch at the top right of the boot lid.

AMG Aerodynamics package

The SLS AMG Coupé Black Series can be upgraded with the optional AMG Aerodynamics package. This package features a fixed, adjustable carbon-fibre rear aerofoil in the style of the SLS AMG GT3 in place of the standard-fit aerofoil which extends automatically at speeds of over 120 km/h. The rear aerofoil is braced by aluminium elements on a special insert on the boot lid and provides for even greater negative lift force on the rear axle – not least of all as a result of the Gurney flap, named after its inventor, Dan Gurney, a former racing driver, designer and team owner. This eight millimetre-high spoiler lip fitted to the rear aerofoil at an angle of 90 degrees results in a further increase in downforce without significantly increasing drag. The rear aerofoil is complemented by additional carbon-fibre flics on the front apron which further reduce downforce at the front axle, as opposed to the more inward-lying standard-fit carbon-fibre flics which serve to optimise the inflow of air into the cooling modules.

The optionally available expressive colour AMG solar beam is exclusive to the SLS AMG Coupé Black Series. Six other exterior paint finishes from the SLS AMG range are available, including the matt paint designo magno alanite grey.

Sporty, functional interior

A functional, sporty racing-car atmosphere is prevalent inside the SLS AMG Coupé Black Series, with high-quality materials demonstrating precision workmanship and exquisitely designed details. There is a choice of two colour variants: Alcantara® black or Alcantara® black/red. With the two-tone variant, the door centre panels and the applications on the centre console and above the glove compartment are finished in red. The AMG Performance steering wheel with flattened bottom rim section features Alcantara® all round for a good grip. In the top section the steering wheel features a sporty red 12 o'clock marking. The real metal bezel features a high-gloss black paint finish to match the high-gloss black surrounds of the air vents. A particularly high-quality and exclusive Black Series detail is the so-called "3D seam" which runs horizontally along the dashboard: a fine Alcantara® strip in anthracite features across the entire width of the leather covering. Red contrasting stitching in the leather lend an accomplished finish to the 3D seam, underscoring the hand-crafted character.

The combination of designo leather and Alcantara® features throughout the interior – on the bottom section of the dashboard, for example, on the door centre panels and on the AMG sports bucket seats, whose centre sections are covered with Alcantara®. Embossed AMG emblems on the head restraints are further exclusive eye-catchers. In addition to providing first-class lateral support at high cornering speeds, the AMG sports bucket seats are also 15 kilograms lighter than the standard AMG sports seats.

The absence of the COMAND APS multimedia system reduces the vehicle's weight by an additional six kilograms as a further demonstration of the SLS AMG Coupé Black Series' uncompromisingly purist character. In place of the screen between the air vents, a carbon-fibre trim element exudes an authentic racing atmosphere. COMAND APS is optionally available ex-factory. The vehicle's occupants will also discover the motorsport material carbon fibre on the entire centre console with the AMG DRIVE UNIT. Bold highlights are added by red seat belts and red contrasting stitching on the AMG sports bucket seats, the centre console, the upper and lower section of the dashboard and the door panelling. The floor mats similarly feature red edging.

Bang & Olufsen BeoSound

A highlight among the optional equipment and appointments is the Bang & Olufsen BeoSound AMG high-end surround sound system, developed by Mercedes-Benz and Mercedes-AMG together with renowned Danish audio specialist Bang & Olufsen. The Bang & Olufsen BeoSound AMG high-end surround sound system with Dolby Digital 5.1 enables an exclusive music experience of the very highest standard. This is made possible by a 1000 W amplifier and 11 loudspeakers in conjunction with precise distribution of the music signals by the sound processor according to the selectable seat positions – driver, co-driver or central. The DSP digital sound processor additionally enables the user to switch between the high-end studio sound ("Reference") and a surround sound option. All functions are controlled via COMAND APS (optional item) in a special Bang & Olufsen menu. The illuminated 50 W lens tweeters are a special highlight on the dashboard. The 250 W subwoofer is accommodated in the rear shelf. High-quality loudspeaker covers sporting the Bang & Olufsen logo indicate the high-end system's exclusive character.

Further individualisation options are also available (selection):

*AMG carbon-fibre exterior mirror
*AMG carbon-fibre engine cover
*AMG Interior Carbon-Fibre package
*AMG infotainment system (incl. COMAND APS, AMG Performance Media and backup camera)
*Media Interface

The market launch of the SLS AMG Coupé Black Series will begin in June 2013.

The SLS AMG GT FINAL EDITION brings an impressive era to an end. The FINAL EDITION model, built in a limited run of just 350 units, represents the last opportunity for customers to order a SLS AMG – while at the same time reflecting the unrivalled success story and unique scope offered by the first vehicle to be completely built by Mercedes-AMG. The super sports car, with its 435 kW (591 hp) AMG 6.3-litre V8 front-mid engine, offers an exciting combination of truly exceptional design and equipment features. Ever since it was presented in 2009 the SLS AMG has been an icon of the Mercedes-Benz brand and is highly sought-after around the world. Thanks to the wide variety of models – from a gullwing model to the roadster, GT, the Black Series, an electric drive and its success in motorsport as the GT3 variant – the SLS AMG has become ever more attractive and is now one of the legendary dream cars from the brand with the star.