Mercedes-AMG is setting a further landmark in the brand history: the new C 63 Coupé is the next step on the way to yet more technical and visual distinctiveness. The far-reaching technical modifications are evident at first sight: strikingly flared front and rear wheel arches, an increased track width and larger wheels give the Coupé a muscular look while at the same time providing a basis for the highly agile longitudinal and lateral dynamics. The brand’s typical “Driving Performance” is taken to new heights also with the C 63 Coupé. The AMG 4.0-litre V8 biturbo engine with 350 kW (476 hp) or 375 kW (510 hp) is just as much a completely in-house development from Affalterbach as, for example, the sophisticated AMG RIDE CONTROL suspension with electronically controlled shock absorbers, the set-up of the AMG DYNAMIC SELECT transmission modes, the rear-axle limited-slip differential or the dynamic engine mounts.
“Like the AMG GT, the new C 63 Coupé embodies the independence of our brand. It offers longitudinal and lateral dynamics at an extremely high level along with improved fuel economy”, says Tobias Moers, Chairman of the Board of Management of Mercedes-AMG GmbH. “In addition, we are making a bold visual statement with the muscular design. Our customers can therefore experience the new Coupé with all of their senses: seeing, hearing, feeling and, above all, driving!”
Fascinating design visualises outstanding performance
The Mercedes-AMG C 63 Coupé already fascinates at first glance with its impressive proportions. The expressive exterior design differs significantly from the Mercedes-Benz model, which shares merely the same doors, roof and boot lid. The powerful 8-cylinder engine, together with the increased track width on the front and rear axles, calls for a redesigned front end and a model-specific rear assembly as well as new side walls. The flared wheel arches make the AMG Coupé 64 mm wider at the front and 66 mm wider at the rear, enabling the vehicle to hug the road better.
The larger wheel arches allow the use of wider tyres (up to 255 mm on the front axle and up to 285 mm on the rear axle), contributing to improved lateral acceleration, traction and agility. Under the outer skin, the body structure has been reinforced in key areas to transfer and compensate the extreme longitudinal and lateral forces from the powertrain and suspension. There is also the model-specific rear axle carrier.
The 60-mm-longer aluminium bonnet is adorned by two distinctive powerdomes, which are among the typical distinguishing features and underscore the muscular appearance. The extremely wide front section is characterised by large air inlets and precisely positioned flics. The low, arrow-shaped “twin blade” radiator grille with AMG lettering visually lowers the vehicle’s centre of gravity. The typical AMG “A-wing” front spoiler is three-dimensional, also serving as an air deflector for the three cooling air inlets. Additional flics ensure an optimal flow of air to the cooling modules. And a front splitter at the bottom of the front apron helps to reduce front-axle lift.
The side line, too, presents an entirely unique face thanks to the large wheels, which finish flush with the body on the far outside, and the special side skirts. The lateral inward step from door to sill lends additional emphasis to the wide base. Added benefit of the newly designed body elements: no compromises were required with regard to the connection of the aprons and other components: every joint and light-catching contour blends in harmoniously with the overall design. In the diagonal view from behind, the muscular line from roof to shoulder via side wall and wheel cutout looks especially impressive, lending emphasis to the impression of an intricately modelled sculpture with alternating light reflections. Fine detail: in typical sports car fashion, the exterior rear-view mirrors are mounted on the door rather than in the mirror triangle.
Taking its inspiration from the S-Class Coupé, the completely redesigned rear end includes a diffuser insert that invokes a typical feature from motor sport. The special design of the laterally positioned, optical air outlet openings improves the rear air flow, allowing it to break away with aerodynamically advantageous precision. Features such as the narrow rear reflectors reinforce the impression of width. The two chrome-plated twin tailpipes of the exhaust system are perfectly integrated into the diffuser. The boot lid includes a narrow spoiler lip in the form of a sharp blade. It not only looks elegant, but also produces more downforce on the rear axle.
Interior with superior perceived quality
The careful selection of high-class materials, their high-quality touch and feel as well as the meticulous workmanship lend the interior a high-class appeal. The instrument panel is trimmed with black ARTICO man-made leather. Crystal grey topstitching, the wing-shaped aluminium trim and the AMG-specific analogue clock in IWC design (depending on specification) underscore the high-quality impression. Numerous AMG-specific controls underscore the motor sport heritage. As an alternative to the standard sports seats in ARTICO/microfibre DINAMICA man-made leather, Performance seats are also available: these allow the occupants a lower seating position and are more strongly contoured for increased lateral support.
Also as regards its engine, the C 63 Coupé occupies an exceptional status among the competition, being the only vehicle in the segment to boast an 8-cylinder biturbo engine. Mercedes-AMG thus meets the wishes of those customers who desire a combination of a highly emotive, unmistakable engine sound and torquey power delivery.
The driver also benefits from the unrivalled performance: the C 63 S Coupé accelerates from 0 to 100 km/h in 3.9 seconds, the C 63 Coupé in 4.0 seconds. This makes the Coupé just a fraction faster than the Saloon – thanks to the wider tyres and shorter-legged rear-axle ratios. The top speed is 250 km/h/155 mph (electronically limited; 290 km/h/180 mph with AMG Driver’s Package). With a power-to-weight ratio of 3.4 kg/hp (C 63 S) and 3.6 kg/hp (C 63), the new AMG V8 top models likewise head the field in this segment.
* Ready-to-drive condition (fuel tank 90% full, without driver and luggage); ** Ready-to-drive condition (fuel tank 90% full, with driver (68 kg) and luggage (7 kg); *** Electronically limited; 290 km/h with AMG Driver’s Package
The 4.0-litre eight-cylinder biturbo engine is already used in the C 63 Saloon and the C 63 Estate. It is also installed in the GT sports car with dry sump lubrication. A characteristic feature is that the two turbochargers are positioned not on the outside of the cylinder banks, but between them in the ‘V’ – experts call this a ‘hot inside V.’ The main advantages of this design are the compact engine construction, optimal response and low exhaust gas emissions.
A host of measures combines maximum performance with favourable fuel consumption figures. The spray-guided direct petrol injection system ensures clean and efficient combustion with high thermodynamic efficiency. Fast-acting piezo injectors enable multiple injections of fuel to be delivered to the engine on demand and with the utmost precision.
Technology from motor racing
The patented NANOSLIDE® cylinder coating, which is also being used in Formula 1 racing today, reduces the friction of the cylinder liners and increases durability. By way of comparison: The surfaces of the cylinder liners of the AMG V8 engine are twice as hard as conventional grey cast liners. The closed deck design of the crankcase is likewise found in motor sport and ensures the crankcase’s extreme stability. Lightweight forged pistons lower the engine weight while offering supreme strength.
The large cooling system is comparable to that of the S 65 and thus ensures the engine’s performance even under extreme stress ‑ for example during track days on the racetrack. The same is true for the flow-optimised cylinder heads, which are made of a special heat-resistant alloy.
Continuous adjustment of the intake and exhaust camshafts improves power delivery and efficiency. It delivers excellent throttle response and optimises the charge cycle for every operating point. An oil pump with variable control also contributes to low fuel consumption.
Exhaust system with flap technology for variable engine sound
The typical V8 engine sound was likewise a key development goal. A sport exhaust system with exhaust flap comes as standard. It is map-controlled depending on the AMG DYNAMIC SELECT driving mode, the power demanded by the driver and the engine speed. The engine sound varies accordingly between discreet/suitable for long-distance driving and throaty/emotionally appealing.
A Performance exhaust system with three selectable exhaust flaps is optionally available for both engine variants. This gives the driver an even wider sound range: In driving mode “Comfort,“ the engine is even more comfortable and quiet, while in “Sport +” and “Race” mode the typical sound of an AMG V8 is even more dominant. In any case, the exhaust systems are designed in such a way that all statutory noise limits are complied with at all times irrespective of the flap position.