More space, more power and more goose pimples – the new Mercedes-AMG GT 4-Door model delivers driving experiences in new dimensions and extends the AMG model family. The new coupé is the first four-door sports car from Affalterbach and draws directly on the legendary SLS and AMG GT models of success. As another vehicle developed autonomously by Mercedes-AMG it combines unique design, high comfort and outstanding sports car engineering with an athletic, four-door fastback layout. It thus offers more space and more potential uses. Systematic expansion of the AMG GT family with the 4-door Coupé opens up the sports car segment to those looking for a vehicle for day-to-day use, but unwilling to go without the unparalleled performance of Mercedes-AMG.
Longitudinal and lateral dynamics at the highest level, and a striking silhouette with classic proportions put the Mercedes-AMG GT 4‑Door Coupé in the portfolio of its two-door brother at first glance. The expressive design with the low bonnet, dominant front and muscular body language emphasizes the sporty genes of the four-door coupé, which sets new standards as the youngest model in the AMG family: As the first four-door AMG GT model it combines high everyday comfort with diverse individualization options and the latest sports car engineering.
The new AMG GT 4-Door Coupé delivers special driving experiences on all levels and with a top speed of up to 315 km/h and its driving dynamics it cuts an effortlessly superior figure wherever it goes. Powerful, up-to-date 6-cylinder in-line and V8 engines with outputs ranging from 320 kW (435 hp) to 470 kW (639 hp) allow completely new driving experiences and combine impressive performance with modern efficiency.
The interior of the first four-door AMG GT model is characterized by elegant coolness and also the latest features: innovative control panels can be intuitively operated and configured as required. The blend of high individualization and sports car technology, placing yet more focus on the requirements of discerning customers, is also clear from the wealth of equipment packages and individual options. The latest coup from Affalterbach also lives up to the Mercedes-AMG brand pledge with regard to its high driving dynamics and sets the benchmark in its segment on the racetrack too. Clearly recognizable as a member of the AMG GT family, the new AMG GT 4-Door Coupé follows the design philosophy of Sensual Purity. It takes the striking proportions with convex surfaces and a muscular body and develops them to exciting effect for a four-door variant of an AMG GT Coupé.
The front view with a long bonnet and two powerdomes leaves no doubt that this is the youngest member of the AMG GT family. The 4-door coupé follows the design tradition of the successful AMG GT models: the powerful body exudes dynamism and motivation. Sensuous shapes with convex surfaces lend the four-door GT timeless elegance, whilst the flowing silhouette with the lowered greenhouse flags up its sporting credentials. As in the AMG GT R radiator shutters, the Airpanel in front of the center cooling air inlet improves the car’s aerodynamic efficiency. Slim MULTIBEAM LED headlamps, the AMG-specific radiator protection grille, the Shark Nose and the front apron with its enhanced Jet Wing (with a flowing A-Wing on the six-cylinder model) also lend the youngest model from Affalterbach the hallmark presence of the AMG GT family.
With frameless side windows and a flat windscreen inclined far to the rear, features of the classic coupé architecture are also cited. With the additional seat row in the rear the characteristic lines of the AMG GT models are not compromised. The tailored upper contours and broad shoulders point to the athletic, sporty orientation of the car, which is additionally emphasized by very pronounced rear wheel arches. The rear view of the new 4-door coupé picks up on familiar features of the AMG GT design idiom: extremely slim LED tail lights define the hallmark boot sill line, the rear aerofoil extendable in several stages not only underscores the family affiliation; it is also an important element of the active aerodynamics. The two eight-cylinder models can be identified through the three horizontal louvres in the side front air intakes, the Jet Wing with its trim element in Silver Shadow, the distinctive diffuser on the tail end and the two-pipe exhaust system with trapezoidal tailpipe trims. The six-cylinder variant, meanwhile, has one louvre in each of the air inlet grilles, round twin tailpipe trims and a somewhat less pronounced rear diffuser.
The new AMG GT 4-Door Coupé offers an extensive portfolio of exterior equipment packages, which can be used to add different highlights in terms of design. The Night Package comprises high-gloss black trim, whilst, for example, the Chrome package emphasizes the luxurious character of the car with trim and an insert in high-gloss chrome. Two Carbon-Fiber Packages offer different versions of carbon-fiber trim, whilst the optional Aerodynamics package gives the car an even sportier look and is a new feature in this segment. It includes additional functional features in high-gloss black, the Jet‑Wing in Silver Shadow in the front apron and the fixed rear aerofoil and also naturally reduces lift at higher speeds. With the V8 style package the six-cylinder model can also be equipped with design features from the eight-cylinder versions.
The exciting AMG 4.0-litre V8 biturbo engine is already used in numerous AMG models. Its output has been enhanced yet further for the new Mercedes‑AMG GT 63 S 4MATIC+ (fuel consumption combined 11.2 l/100 km, CO2 emissions combined 256 g/km)* and ensures superior performance on a par with a sports car. It delivers 470 kW (639 hp) and a maximum torque of 900 Nm, which is available over a wide engine speed range from 2500 to 4500 rpm. The top engine of the new four-door AMG GT thus exudes effortless superiority in every engine speed range. Acceleration from 0 to 100 km/h in 3.2 seconds clearly illustrates this, as does the maximum speed of 315 km/h. In the Mercedes-AMG GT 63 4MATIC+ (fuel consumption combined 11.0 l/100 km, CO2 emissions combined 252 g/km) the V8 unit provides 430 kW (585 hp) and 800 Nm maximum torque. The sprint from standstill to 100 km/h lasts just 3.4 seconds, and the top speed is 310 km/h.
The AMG 4.0-litre V8 engine works with the proven biturbocharging, where the two exhaust-gas turbochargers are arranged not on the exterior, but between the cylinder banks. The advantages of the “hot inner V” are in the compact engine design and the immediate response of the exhaust-gas turbochargers. In the AMG GT 63 S variant the eight-cylinder has active engine mounts. They solve the conflicting goals of achieving as soft a connection as possible to the powertrain for high comfort and as rigid a connection as possible for optimum driving dynamics, by steplessly and quickly adapting their rigidity to the respective driving conditions. As an option the AMG GT 63 can be equipped with active engine mounts as part of the Dynamic Plus package.
Two twin-scroll exhaust-gas turbochargers combined with another innovative technology ensure even more output and better response. For the first time Mercedes-AMG is combining the advantages of twin-scroll technology in the V8 engine with turbine wheels mounted in anti-friction bearings. Through the mounting in anti-friction bearings, friction is reduced to an absolute minimum inside the exhaust-gas turbocharger. The twin-scroll technology also ensures that the exhaust gas flow is optimally utilized. Put together these both improved the immediate response of the four-liter eight-cylinder from AMG, which was already the benchmark. Through the optimized cylinder charge the output and the maximum torque was raised further. Spray-guided direct petrol injection with piezo injectors, the all-aluminum crankcase, the four-valve-per-cylinder design with camshaft adjustment, air-water charge air cooling, alternator management, the ECO start/stop function and the gliding mode have all been retained.
For maximum efficiency, Mercedes-AMG has also equipped the V8 engines with the AMG Cylinder Management cylinder deactivation system. In the partial-load range, cylinders two, three, five and eight are deactivated, which crucially reduces the fuel consumption. When the driver has selected the “Comfort” drive program, the cylinder deactivation system is available in the wide engine speed range from 1000 to 3250 rpm. A special display on the instrument cluster states whether the cylinder deactivation system is in use and whether the engine is presently operating in the four- or eight-cylinder mode. The transition between these two operating states is immediate, fast and torque-neutral, so the occupants do not have to relinquish any comfort.
Alongside the two V8 engines the new four-door sports car is also available as the Mercedes-AMG GT 53 4MATIC+ (fuel consumption combined 9.1 l/100 km, CO2 emissions combined 209 g/km) with the innovative AMG six-cylinder inline engine. The 320 kW (435 hp) 3.0-litre unit is characterized by high performance, supported by a boost effect with an output of up to 16 kW (22 hp) and 250 newton meters of torque. The EQ Boost starter-alternator combines a starter motor and alternator in a powerful electric motor and is between the engine and transmission. This intelligent combination, along with efficient charging with the electric additional compressor (eZV) and exhaust air turbocharger helps ensure the hallmark AMG performance and driving dynamics but also cuts consumption and emissions at the same time. The four-door AMG GT 53 accelerates from zero to 100 km/h in just 4.5 seconds, and achieves a top speed of 285 km/h.
The EQ Boost starter-alternator in the new AMG GT 53 also generates the power for the 48 V on-board electrical system. This in turn uses a DC/DC converter to supply the conventional 12 V network for the lights, cockpit, infotainment displays and control units. Through the 48 V battery the battery capacity of the entire car is increased, which means that more electrical energy can be made available for new functions. The 48 V on-board electrical system thus also paves the way for the progressive expansion of infotainment and assistance systems. The AMG SPEEDSHIFT MCT 9G 9-speed transmission is specially tuned to the requirements of the eight-cylinder variants of the new four-door AMG GT. A wet clutch is used here. This reduces weight and inertia and optimizes the response. The extensively tailored software enables extremely short shift times and fast multiple downshifts and delivers an especially emotive gearshifting experience thanks to the double-clutching function. There is also a RACE START function, ensuring optimum acceleration.
The six-cylinder inline engine is coupled with the AMG SPEEDSHIFT TCT 9G transmission. In conjunction with the torque converter the transmission is tuned to the special requirements of this engine. On the other hand, the extremely fast and emotive gearshifting characteristic of an AMG model is also possible depending on the drive program. In order to meet the high demands of impressive driving dynamics, Mercedes-AMG engages all the components this takes. With its sophisticated design the bodyshell of the Mercedes-AMG GT 63/53 plays an equally crucial role as the ingenious control strategy of the all-wheel drive system. And it is only in the optimum interplay together with the active aerodynamics, the rear axle steering and the ESP® that the complicated suspension tuning unleashes its full potential. Through the complex networking of all the systems and components the developers in Affalterbach were able to bestow on the car the high level of driving dynamics expected of it as a member of the AMG GT‑family.
One aim during development of the new four-door AMG GT was to anchor the genes of a sports car in the bodyshell. In order to do this, analysis and simulation methods from racing were used in order to reinforce the structure where necessary for maximum performance. The very rigid front section prevents unwanted distortions about the longitudinal and transverse axle, which ensures precise steering and better feedback for the driver. In the area of the center and tail end of the vehicle new reinforcement concepts were used in conjunction with state-of-the-art CRP plastics. This, together with further individual measures plus close networking with Chassis Development right from the outset, ensured that the four-door AMG GT was given an optimum basis for high lateral dynamics potential.
