The Mercedes-Benz S-Class Cabriolet AMG S 63 4MATIC+ MCT, produced from 2017 to 2020, represents the pinnacle of open-top luxury and performance within the A217 S-Class generation. This facelifted model, building upon the initial A217 release, combined the opulent comfort expected of an S-Class with the formidable power of the AMG division. Positioned as the range-topping variant of the Cabriolet, it catered to buyers seeking uncompromising performance and exclusivity. The “MCT” designation refers to the Multi Clutch Technology utilized in its nine-speed automatic transmission, a key component of its dynamic capabilities.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class Cabriolet (A217, facelift 2017) |
| Type | AMG S 63 (612 Hp) 4MATIC+ MCT |
| Start of production | 2017 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption at Low speed (WLTP) | 12.1 l/100 km (19.4 US mpg, 23.3 UK mpg, 8.3 km/l) |
| Fuel consumption at very high speed (WLTP) | 12.3 l/100 km (19.1 US mpg, 23 UK mpg, 8.1 km/l) |
| CO2 emissions (WLTP) | 273-277 g/km |
| Fuel consumption (economy) – urban | 13.6 l/100 km (17.3 US mpg, 20.8 UK mpg, 7.4 km/l) |
| Fuel consumption (economy) – extra urban | 8 l/100 km (29.4 US mpg, 35.3 UK mpg, 12.5 km/l) |
| Fuel consumption (economy) – combined | 10.1 l/100 km (23.3 US mpg, 28 UK mpg, 9.9 km/l) |
| CO2 emissions | 229 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.5 sec |
| Acceleration 0 – 62 mph | 3.5 sec |
| Acceleration 0 – 60 mph | 3.3 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 3.4 kg/Hp, 290 Hp/tonne |
| Weight-to-torque ratio | 2.3 kg/Nm, 426.5 Nm/tonne |
| Power | 612 Hp @ 5500-6000 rpm |
| Power per litre | 153.7 Hp/l |
| Torque | 900 Nm @ 2750-4500 rpm (663.81 lb.-ft. @ 2750-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 177.980 |
| Engine displacement | 3982 cm3 (243 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Compression ratio | 8.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Engine oil capacity | 9 l (9.51 US qt | 7.92 UK qt) |
| Coolant | 13.5 l (14.27 US qt | 11.88 UK qt) |
| Kerb Weight | 2110 kg (4651.75 lbs.) |
| Max. weight | 2635 kg (5809.18 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 5051 mm (198.86 in.) |
| Width including mirrors | 2108 mm (82.99 in.) |
| Wheelbase | 2945 mm (115.94 in.) |
| Front track | 1660 mm (65.35 in.) |
| Rear (Back) track | 1645 mm (64.76 in.) |
| Drag coefficient (Cd) | 0.33 |
| Minimum turning circle (turning diameter) | 11.90 m (39.04 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission MCT |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 255/45 ZR19; 285/40 ZR19 |
| Wheel rims size | 19 |
Powertrain & Engine Architecture
At the heart of the AMG S 63 Cabriolet lies the M177.980 4.0-liter V8 engine. This engine, a cornerstone of AMG’s modern powertrain strategy, utilizes a “hot-vee” configuration, meaning the turbochargers are located within the valley between the cylinder banks. This design minimizes turbocharger lag and improves responsiveness. The engine employs direct fuel injection, delivering fuel directly into the combustion chambers for precise control and increased efficiency. It produces 612 horsepower at 5500-6000 rpm and a staggering 900 Nm (663.81 lb-ft) of torque between 2750 and 4500 rpm. The engine is paired with AMG’s SPEEDSHIFT MCT 9-speed automatic transmission. Unlike a traditional torque converter automatic, the MCT utilizes a wet multi-plate clutch pack instead of a torque converter, resulting in faster and more direct gear changes. The 4MATIC+ all-wheel-drive system intelligently distributes power between the front and rear axles, optimizing traction and stability.
Driving Characteristics
The AMG S 63 Cabriolet delivers a driving experience that is both exhilarating and refined. The combination of the powerful V8 engine, the quick-shifting MCT transmission, and the 4MATIC+ all-wheel-drive system results in blistering acceleration – 0 to 60 mph in just 3.3 seconds. The transmission’s gear ratios are tuned for both rapid acceleration and comfortable cruising. While the 9-speed transmission offers a wide range, it’s the responsiveness and immediacy of the shifts that truly stand out. Compared to the standard S-Class Cabriolet models with smaller engines, the S 63 offers a dramatically different experience. The lower-powered variants prioritize comfort and fuel efficiency, while the S 63 is unapologetically focused on performance. Even compared to other AMG variants, like those with the 5.5-liter V8, the 4.0-liter engine provides a more modern and efficient driving experience.
Equipment & Trim Levels
The AMG S 63 Cabriolet came standard with a comprehensive array of luxury and performance features. Interior appointments included premium leather upholstery, AMG sport seats with enhanced bolstering, and carbon fiber trim. Standard technology included the COMAND infotainment system with a large display screen, a Burmester surround sound system, and a suite of driver-assistance features such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras included features like the AIRMATIC suspension with ACTIVE BODY CONTROL, which further enhanced ride comfort and handling, as well as various customization options for the interior and exterior.
Chassis & Braking
The chassis of the AMG S 63 Cabriolet is specifically tuned to handle the increased power and performance. It features AMG-tuned suspension, with adaptive dampers that adjust to road conditions and driving style. The car is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Larger brake rotors and calipers are used compared to the standard S-Class Cabriolet models. The steering system is also AMG-tuned, offering precise and responsive handling. The Cabriolet benefits from reinforced body structure to minimize scuttle shake, a common issue in convertible vehicles.
Market Reception & Comparison
The AMG S 63 Cabriolet was widely praised by automotive critics for its exceptional performance, luxurious interior, and advanced technology. However, its high price tag and relatively poor fuel economy were noted drawbacks. Compared to competitors like the Porsche 911 Cabriolet, the S 63 offered a more luxurious and comfortable experience, but lacked the same level of focused driving engagement. Against other high-performance luxury convertibles, such as the Bentley Continental GT Convertible, the S 63 offered a compelling combination of power, technology, and prestige.
Legacy
The M177 engine family, including the 4.0-liter V8 found in the S 63, has proven to be remarkably reliable. While maintenance costs are higher than those of more mainstream vehicles, the engine itself is generally robust. On the used car market, the A217 S 63 Cabriolet holds its value well, appealing to buyers seeking a high-performance luxury convertible with a prestigious badge. Its combination of power, comfort, and technology continues to make it a desirable vehicle for enthusiasts and collectors alike. The MCT transmission, while offering performance benefits, requires diligent maintenance to ensure long-term reliability.
