The Mercedes-Benz S-Class Cabriolet (A217) AMG S 65 V12, produced from September 2015 to 2017, represents the pinnacle of open-top luxury and performance within the A217 generation S-Class. Positioned as the flagship variant of the Cabriolet range, it combined the opulent features of the S-Class with the formidable power of Mercedes-AMG’s 6.0-liter V12 engine. This model catered to buyers seeking an uncompromising grand touring experience, blending breathtaking acceleration with sophisticated comfort and exclusivity. It was a relatively short-lived production run, emphasizing its collectibility.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class Cabriolet (A217) |
| Type | AMG S 65 V12 (630 Hp) G-TRONIC |
| Start of production | September, 2015 |
| End of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 17.1 l/100 km (13.8 US mpg, 16.5 UK mpg, 5.8 km/l) |
| Fuel consumption (extra urban) | 8.9 l/100 km (26.4 US mpg, 31.7 UK mpg, 11.2 km/l) |
| Fuel consumption (combined) | 12 l/100 km (19.6 US mpg, 23.5 UK mpg, 8.3 km/l) |
| CO2 emissions | 272 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.1 sec |
| Acceleration 0 – 62 mph | 4.1 sec |
| Acceleration 0 – 60 mph | 3.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 3.5 kg/Hp, 289 Hp/tonne |
| Weight-to-torque ratio | 2.2 kg/Nm, 458.7 Nm/tonne |
| Power | 630 Hp @ 4800-5400 rpm |
| Power per litre | 105.4 Hp/l |
| Torque | 1000 Nm @ 2300-4300 rpm (737.56 lb.-ft. @ 2300-4300 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 279.980 |
| Engine displacement | 5980 cm3 (364.92 cu. in.) |
| Number of cylinders | 12 |
| Engine configuration | V-engine |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Engine oil capacity | 9.5 l (10.04 US qt | 8.36 UK qt) |
| Coolant | 11.8 l (12.47 US qt | 10.38 UK qt) |
| Kerb Weight | 2180 kg (4806.08 lbs.) |
| Max. weight | 2625 kg (5787.13 lbs.) |
| Max load | 445 kg (981.06 lbs.) |
| Trunk (boot) space – minimum | 350 l (12.36 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 5027 mm (197.91 in.) |
| Width | 1899 mm (74.76 in.) |
| Width including mirrors | 2108 mm (82.99 in.) |
| Height | 1417 mm (55.79 in.) |
| Wheelbase | 2945 mm (115.94 in.) |
| Front track | 1625 mm (63.98 in.) |
| Rear (Back) track | 1649 mm (64.92 in.) |
| Front overhang | 954 mm (37.56 in.) |
| Rear overhang | 1128 mm (44.41 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle | 11.9 m (39.04 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC |
| 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 | 255/40 ZR 20 |
| Wheel rims size | 20 |
Powertrain & Engine Architecture
The heart of the AMG S 65 Cabriolet is the M279.980 6.0-liter V12 engine. This engine is a masterpiece of engineering, featuring direct fuel injection, twin turbochargers, and an intercooler. The V12 configuration provides inherent smoothness and a broad torque curve. The twin-turbochargers deliver substantial boost, contributing to the engine’s impressive 630 horsepower and 737.56 lb.-ft. of torque. The G-TRONIC 7-speed automatic transmission, specifically tuned for the V12, provides seamless gear changes and contributes to the car’s refined driving experience. This transmission is known for its responsiveness and ability to handle the immense power output of the engine.
Driving Characteristics
The AMG S 65 Cabriolet delivers a driving experience that is both exhilarating and supremely comfortable. The immense torque available from 2300 rpm provides effortless acceleration in any gear. The 0-60 mph sprint takes just 3.9 seconds, and the car feels remarkably stable even at high speeds. The G-TRONIC transmission is programmed for smooth shifts, but can also be controlled manually via steering wheel-mounted paddle shifters for a more engaging driving experience. Compared to the S 550 Cabriolet, the S 65 offers a significantly more potent and responsive driving experience, sacrificing some fuel economy for sheer performance. The suspension, while firm enough to control body roll, is tuned to provide a comfortable ride, even on less-than-perfect road surfaces.
Equipment & Trim Levels
As the range-topping model, the AMG S 65 Cabriolet came standard with a comprehensive list of luxury features. Interior appointments included premium leather upholstery, AMG sport seats with massage functions, and a high-end Burmester surround sound system. Standard exterior features included AMG-specific body styling, 20-inch alloy wheels, and an AIRMATIC suspension system. Optional extras included a head-up display, a night view assist system, and various interior trim options. The interior was typically finished with a combination of leather, wood, and metal accents, creating a luxurious and sophisticated atmosphere.
Chassis & Braking
The S 65 Cabriolet features an independent multi-link suspension at both the front and rear, providing a comfortable ride and precise handling. The AIRMATIC suspension system allows the driver to adjust the ride height and damping characteristics. Braking duties are handled by ventilated discs at all four corners, providing ample stopping power. The AMG braking system, with larger rotors and calipers, was often specified as an option for even greater performance. The car’s electronic stability program (ESP) helps to maintain control in challenging driving conditions.
Market Reception & Comparison
The AMG S 65 Cabriolet was generally well-received by automotive critics, who praised its performance, luxury, and refinement. However, its high price tag and relatively low fuel economy were noted as drawbacks. Compared to other high-performance convertibles, such as the Porsche 911 Turbo Cabriolet, the S 65 offered a more luxurious and comfortable experience, but lacked the same level of outright sporting agility. Its fuel economy, at 12 l/100 km combined, was significantly worse than the S 550 Cabriolet, which achieved around 9.8 l/100 km.
Legacy
The M279 V12 engine, while complex, has proven to be a relatively reliable powerplant when properly maintained. Common issues include occasional turbocharger problems and oil leaks. The G-TRONIC transmission is also generally reliable, but requires regular fluid changes. Today, the AMG S 65 Cabriolet is a sought-after collector’s item, commanding a premium price on the used car market. Its combination of performance, luxury, and exclusivity makes it a desirable vehicle for enthusiasts and collectors alike. The limited production run further enhances its collectibility and ensures its place as a significant model in the history of the Mercedes-Benz S-Class.
