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Hats off to the Beast of the Green Hell

March_2019 The new Mercedes-Benz GT R RoadsterThe new AMG GT R Roadster is just as much at home on winding racetracks as it is on prestigious boulevards or beautiful coastal roads. With its powerful drive and expressive design, it addresses a new, lifestyle-oriented target group which lives life to the full. The 430 kW/585 hp V8 biturbo, adjustable coil-over suspension with active rear axle steering, active aerodynamics and the intelligent lightweight construction form the foundations for highly dynamic handling characteristics. Similar   to the other roadster models, the open AMG GT R also has a triple-layer fabric soft top with a lightweight structure consisting of aluminium, magnesium and steel.

With this latest addition, the AMG GT family now has 16 members: five two-door coupés, four roadsters, two customer sports racing cars and five 4-door coupés."The new AMG GT R Roadster is far more than a combination of the thrilling vehicle dynamics of the GT R with the special flair of our GT Roadsters. It is the essence of two worlds, blending to deliver our brand pledge, Driving Performance, in a very special way. With our GT R Roadster, we have without doubt once again developed a brand-defining sports car. It too embodies Mercedes-AMG in form, function and vehicle dynamics and enriches our GT family with a highly exclusive variant limited to 750 units", says Tobias Moers, Chairman of the Management Board of Mercedes-AMG GmbH.

The AMG 4.0-litre V8 biturbo in the AMG GT R Roadster delivers an output of 430 kW(585 hp) and maximum torque of 700 Nm. This is available over a wide engine speed range from 2100 to 5500 rpm. The eight-cylinder power unit delivers muscular performance in all engine speed ranges, combined with high efficiency. A sprint from standstill to 100 km/h is absolved in 3.6 seconds with dynamic power delivery continuing right up to the top speed of 317 km/h.

The AMG 4.0-litre V8 biturbo in the AMG GT R Roadster delivers an output of 430 kW (585 hp) and maximum torque of 700 Nm. This is available over a wide engine speed ranges from 2100 to 5500 rpm. The eight-cylinder power unit delivers muscular performance in all engine speed ranges, combined with high efficiency. A sprint from standstill to 100 km/h is absolved in 3.6 seconds with dynamic power delivery continuing right up to the top speed of 317 km/h.

Wants to stay ahead even at a standstill: the exterior design

The low-slung front section and the forward-inclined AMG-specific radiator grille create a distinctive "shark nose" impression and makes the car appear lower on the road. At the same time, this shape lowers the vehicle's back-pressure point, enhancing the flow of cooling air and the car's aerodynamic performance.

The standard-fit LED High Performance headlamps strengthen the AMG GT family ties with their light signature. A tri-functional, arched light guide takes on the functions of daytime running light, navigation light and turn signals. The multi-chamber reflector system with three single reflectors each for dipped beam and main beam not only ensures optimal illumination of the roadway, but also gives the AMG GT Roadster a sporty, dynamic look which gains even  more optical depth as the result of the black background.

With a scarf and cooled cushions on request: AMG Performance seats

The standard-specification AMG Performance seats in black/black Exclusive STYLE nappa leather offer strong lateral support with their more deeply contoured side bolsters on the sitting surface and seat backrest. The neck-level heating AIRSCARF is optionally available, making open-air driving a pleasure even in low outside temperatures. The air outlet is seamlessly integrated in the head restraint section, the temperature of the outflowing air can be adjusted in three stages.

March_2019 The new Mercedes-Benz GT R Roadster 2

Customers wishing to enjoy comfortable temperatures even on very hot summer days can also opt for the seat climate control, which is also available for the AMG Performance seats. The intensity of the climatisation can be set in three stages.

Other materials and colours are also optionally available:

  • Exclusive STYLE nappa leather in saddle brown/black
  • Exclusive STYLE nappa leather in macchiato beige /black
  • Exclusive STYLE nappa leather in silver pearl /black

the instrument panel and the trim strips in the armrests in the doors are in high-quality high-gloss carbon fibre. The trim elements are also available in black matt carbon fibre.

Just the touch of a finger away: display buttons in the centre console

The innovative, coloured display buttons in the V-shaped centre console integrate the display and control of transmission logic, suspension, ESP, exhaust system, aerodynamics profile and start/stop function. Using TFT technology the display buttons use intuitively comprehensible symbols to show the function and are easy to operate with just a small tap of the finger. The display buttons are supplemented by the two rocker switches for the drive programs and volume control of the audio system.

Control in an instant: the AMG Performance steering wheel

The AMG GT R Roadster has also been given the new AMG Performance steering wheel as standard. It is characterised by its sporty design, a flattened bottom section with a heavily contoured rim and intuitive operation. The steering-wheel rim is completely covered in DINAMICA microfibre. The galvanised steering wheel gearshift paddles allow an even sportier driving style with manual gear shifting. The integrated Touch Control buttons can be used to control the functions of the digital dash and the multimedia display by means of horizontal and vertical swiping of the finger.

The two freely configurable display buttons and the additional switches on the left-hand side enable further AMG functions to be controlled directly on the steering wheel. This means that the driver can concentrate fully on dynamic driving without having to take their hands off the wheel. Each required function can be depicted on the display icon and its switch is tapped by the driver to set the respective function. So, the two individually preferred AMG functions can be defined exactly, and the settings changed with just one tap of the finger.

The AMG Interior Night Package also comes as standard. In this package, the shift paddles, steering wheel spokes, seat insert (on the AMG Performance seat) as well as the door sills are finished in high-gloss black, which combines with the standard-specification AMG carbon fibre/piano lacquer trim elements to further emphasise the sportiness.

No need to fear the scales: intelligent lightweight construction for high agility

A key factor in a sports car's performance is a gross vehicle weight that is as low as it can possibly be. Mercedes-AMG uses an intelligent material mix in order to achieve this aim in the structure of the AMG GT R Roadster. Various aluminium alloys are used for the chassis and body, and magnesium for the front deck. This extremely light element at the front reduces the inertia ahead of the front axle, thus improving the vehicle's agility. The load-bearing  structure of the boot lid is of SMC (Sheet Moulding Compound) bonded with carbon fibres. These high-tech plastics excel with their lightweight design, high strength and outstanding surface quality.

The weight-optimised spaceframe is made of die-cast and extruded aluminium sections. The high bending and torsional strength of the entire design enables extreme linear and transverse forces from the drivetrain and suspension to be absorbed and transferred. Unwanted flexibility is thus reduced, with the vehicle responding precisely and directly. The result is that the driver experiences a sports car with maximum dynamics responding with outstanding precision. The body-in-white now also has an integral aluminium crossmember as rollover protection for the occupants.

Light and strong: Materials from motor racing

A host of further measures contributes to weight reduction as part of the AMG lightweight-performance strategy. Light and strong carbon fibre is the material of choice for, among other things, the front wings and the torque tube between engine and transmission.

Now weighing in at just 13.9 kilograms, the carbon-fibre torque tube is about 40 percent lighter than its already weight-optimised aluminium counterpart in the AMG GT. As a structural component of the transaxle drivetrain, it creates a connection between the engine and the transmission with extreme flexural and torsional stiffness. It permits a very direct connection of the drivetrain that is favourable to driving dynamics and also plays a role in the vehicle's balanced weight distribution.

Will not warp: Carbon tunnel brace

The tunnel brace in carbon further stiffens the body considerably for withstanding the high torsional loads that occur during powerful acceleration. To this end, it braces the two vehicle sides against each other even more effectively in the tunnel area for the torque tube, This significantly increases the torsional rigidity by some 7.5 percent. After the first few metres already, the driver gets an extremely precise driving impression, which is maintained even in the event of extreme vehicle loads when driving at the dynamic limits. The fact that the body of the car is more composed allows even better control of the AMG GT R Roadster under difficult racetrack conditions such as fast, bumpy corners and means that less steering effort is required.

Over and above this, two diagonal braces in the engine bay stiffen the front end. In the AMG GT R, they are likewise made of carbon fibre and represent weight savings of about 50 percent over steel components.

Goose-bump-inducing sound: the AMG performance sports exhaust system

The specially developed exhaust system not only delivers genuine racing car sound, it also saves around six kilograms of weight thanks to the use of titanium for the rear silencer and thin-walled stainless steel for the front section of the exhaust system.

With its special, hexagonal form, the large tailpipe tip centred in the rear apron emphasises the car's motor-racing character. Two more tailpipes are located on the left and right in the diffuser. Their tips are sheathed in carbon fibre like in motorsport to protect the diffuser against high exhaust temperatures. The exhaust system features two infinitely variable exhaust flaps as standard, which have a direct influence on the sound of the AMG GT R Roadster. 

The exhaust flaps open and close depending on the selected AMG DRIVE SELECT mode, although they can also be controlled individually using a separate button in the AMG DRIVE UNIT. In the "Comfort" and "Sport" modes, the low-frequency sound typical of a V-8 emphasises comfort. In "Sport Plus" and "RACE" modes, meanwhile, the sound composition is far more emotive.

Beautifully spontaneous: the agile dual-clutch transmission

The seven-speed dual-clutch transmission configured in transaxle layout at the rear axle has also been made even more suitable for the racetrack by the AMG developers. First gear in the AMG SPEEDSHIFT DCT 7G has a longer ratio, while seventh gear and the final drive have shorter ratios to allow a more agile acceleration experience overall and very spontaneous response to fast accelerator pedal movements.

The previous limits governing shift performance and response time have been extended substantially. The Race Start function is now even more impressive thanks to the increased starting revs, the more sensitive wheel slip control and the sports tyres fit for the racetrack. Furthermore, the transmission cooling has been adapted to the tougher requirements of racing.

Tailor-made driving pleasure times six: the drive programs

Using the AMG DYNAMIC SELECT gearshift paddle in the centre console or the AMG steering-wheel buttons the driver can adjust the AMG GT R Roadster to suit their individual requirements. They can choose from "Slippery", "Comfort", "Sport", "Sport plus", "RACE" and "Individual". The "RACE" mode optimally adjusts the shift strategy of the dual clutch transmission to the needs of racetrack usage – very short shift speeds and highly emotive engine sound are included. By pressing the separate "M" button in the centre console, the driver can activate the manual transmission mode in any drive mode.

As a feature in the AMG DYNAMIC SELECT drive programs, the AMG GT R Roadster also comes with AMG DYNAMICS. This integrated driving dynamics regulation expands the functions of ESP® (electronic stability programme) to exact dosing of power distribution at the rear axis and the characteristics of steering. In this way the car becomes even more agile at its highest stability. In the first place AMG DYNAMICS optimises the transverse dynamics by a higher lateral acceleration, better traction and load change reactions.

Particularly remarkable: AMG DYNAMICS calculates how the vehicle will react. To do this, the system uses the available sensors that detect the speed, the steering angle or the yaw rate, for instance. Based on the pilot-control principle it is possible to anticipate the vehicle behaviour on the basis of the driver's actions and the data from the sensors. The control system reacts in this way even before the driver – and with no noticeable or intervention of the system. The driver gets a very authentic driving feel with high cornering dynamics and optimum traction as well as high stability and predictable handling. This provides optimum support even for experienced drivers. 

The different AMG DYNAMICS modes are named "Basic", "Advanced", "Pro" and "Master". The drive program selection indicated on the multimedia display now shows the new AMG DYNAMICS symbol with the relevant additional term instead of the previous ESP®symbol.

  • "Basic" is assigned to the "Slippery" and "Comfort" drive programs. Here the AMG GT demonstrates exceptionally stable handling characteristics with high yaw damping.
  • "Advanced" is activated in the "Sport" programme. The AMG GT is then neutrally balanced. The lower yaw damping, lower steering angle requirement and enhanced agility support dynamic maneuvers such as driving on winding country roads.
  •  “Pro” (abbreviation for “professional”) is part of the “Sport+” programme. In “Pro” the driver receives even more assistance for dynamic driving manoeuvres while agility and precision are further enhanced when taking corners.
  • "Master" is coupled with the RACE drive program. "Master" mode is aimed at drivers who want to experience dynamism and the driving enjoyment on closed-off circuits. "Master" offers an extremely neutral vehicle balance, low steer angle requirement and more agile steering. In this way, "Master" ensures maximum agility and fully exploits the dynamic potential.

Even the mounts adapt: the dynamic engine and transmission mounts

Dynamic engine and transmission mounts are likewise installed as standard in the AMG GT R Roadster. The engine and transmission mounts assume an important function in the case of a transaxle design: soft mounts improve comfort since they provide more effective decoupling of noise and vibration. However, handling and agility benefit from a generally stiffer mount set-up. Mercedes-AMG resolves these conflicting objectives using dynamic mounts, which adjust their stiffness continuously and almost instantaneously to the respective driving conditions and handling.

This function is performed by a special control unit, which identifies handling situations on the basis of CAN data, is connected to the electronic limited-slip rear differential and thus ensures optimum balanced driving dynamics. AMG has gone a step further in the implementation of this technology: the engine and transmission mounts are even actuated independently of each other. The advantage is that this innovative solution is that it provides an additional substantial improvement in driving precision and lateral dynamics.

Stays neatly on track: the chassis with uniball joint bearings

The chassis has also been modified. Wishbones, steering knuckles and hub carriers on the front and rear axle are manufactured entirely out of forged aluminium in order to reduce the unsprung masses. The double-wishbone concept locates the wheel firmly, with minimal elastic movements. The high camber and toe-in stability results in high cornering speeds and also provides the driver with an optimum feel for the road when cornering at the extreme limits.

The uniball spherical bearings on the lower wishbones of the rear axle are directly inspired by motorsport. They are significantly more wear-resistant than wishbone bushings and due to their design have no play, which means toe-in and camber do not change even under high loads. As a result, the AMG GT R Roadster can be driven with even more precision. In addition, the rear axle is fitted with a thicker tubular anti-roll bar. It has been adapted to the heightened driving dynamics requirements of the AMG GT R Roadster and saves weight due to its hollow design.

If you also steer from behind, you drive better: the active rear-wheel steering

The new AMG GT R Roadster is even more sensitive to steering inputs thanks to standard active rear-wheel steering. The system offers an ideal combination of agility and stability - handling characteristics that are normally in direct conflict. Two steering actuators replace the conventional control arms on the rear axle. At the heart of the system are two electro-mechanical actuators (electric motors with jackscrew) that are not mechanically connected to the steering wheel. This "by-wire" system adjusts the rear wheels within a predefined operating map by means of electronic control. The maximum track angle change on the rear wheels is 1.5 degrees.

Up to a speed of 100 km/h, the rear wheels point in the opposite direction to the front wheels. corresponding to a virtual shortening of the wheelbase. The advantage is that the roadster is far more agile when steering into bends, resulting in even greater driving enjoyment and less steering effort - especially on small and winding roads, narrow racetracks on which there are multiple changes in direction, or slalom courses. Further benefits include increased maneuverability and a smaller turning circle in everyday driving situations - such as when turning or parking.

Once the car's speed exceeds 100 km/h, the system turns the rear wheels in the same direction as the front wheels, corresponding to a virtual lengthening of the wheelbase and improving handling stability. At the same time, the lateral force on the rear wheels builds up considerably faster on changes of direction, thus speeding up the response to the steering. The active rear-wheel steering not only improves cornering, it also assists the driver in the event of sudden evasive maneuvers and thus enhances active safety.

Grip to the power of nine: AMG TRACTION CONTROL

Control is via the round rotary switch with an integral display on the right- hand AMG steering-wheel button. Depending on the setting, the system permits more or less slip on the rear wheels - very helpful in varying road conditions. Level 1 is programmed for driving in the wet with high safety reserves. Level 9 allows maximum slip on the rear axle. The respective setting is shown in the display on the right-hand steering-wheel button and in the central display on the instrument cluster.

The AMG development has a major advantage over conventional systems in that it anticipates situations with the help of a virtual µ(mu) simulator and  other data processed by a control unit within fractions of a second. The maximum permissible drive slip on the rear wheels is calculated depending on the selected AMG TRACTION CONTROL level. When the wheels reach this level of slip during acceleration, the traction control modulates the engine output so that this level is not exceeded, and the vehicle continues accelerating with this specified slip. The effect of the electronic limited-slip differential is also included in the adjustment scope. This control therefore takes place without  lag, further enhancing both driving enjoyment and performance.

Responds directly: speed-sensitive sports steering

The speed-sensitive sports steering features a variable steering ratio, which enhances vehicle handling and agility at low speeds while maintaining driving safety at high speeds. The power assistance is a particular highlight: it responds not only depending on the given road speed, but also according to the current lateral acceleration and the selected AMG DYNAMIC SELECT drive mode. The result: The driver has a perfect feel for the vehicle thanks to the direct feedback from the road.

Systematically knuckles down: the high-performance compound braking system

The high-performance composite brake system ensures excellent deceleration and high fade-resistance with internally ventilated and perforated brake discs of diameter 390 millimetres on the front axle and 360 millimetres on the rear axle. The brake callipers are painted yellow as standard.

A ceramic high-performance composite brake system is available as an option. The advantages of this system are a weight saving of approx. 15 kilograms, a longer service life and even better fade resistance thanks to the ceramic brake discs with a diameter of 402 millimetres at the front and 360 millimetres at the rear.

Data at a glance


Mercedes-AMGGTR Roadster


4.0-litre V8 with direct injection and twin turbochargers


3982 cc


430 kW (585 hp) at

6250 rpm

Peak torque

700 Nm at 2100-5500 rpm

Fuel consumption, combined

12.4 l/100 km*

Combined CO2 emissions

284 g/km*

Efficiency class


Weight (DIN/EC)

1635 kg** / 1710 kg***

Acceleration 0-100 km/h

3.6 s

Top speed

317 km/h

Rear-axle limited-slip differential

Electronically controlled


AMG RIDE CONTROL sports suspension with Adaptive Damping System and coil- over element

Wheels - front / rear

10.0 J x 19 / 12.0 J x 20

Tyres - front / rear

275/35 R 19 /

325/30 R 20

Brake disks - front / rear

390 mm / 360 mm

Drive modes

six: Slippery, Comfort, Sport, Sport+, Individual, RACE


Figures for fuel consumption and for CO2 emissions are provisional and were determined by the Technical Service for the certification process in accordance with the WLTP test method and correlated into NEDC figures. EC type approval and conformity certification with official figures are not yet available. Differences between the stated figures and the official figures are possible...

**Kerb weight according to DIN, not including driver; ***Kerb weight according to EC, including driver (75 kg)