Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class Coupe (C140) |
| Type (Engine) | S 600 V12 (394 Hp) 4G-TRONIC |
| Start of production | June, 1993 |
| End of production | May, 1995 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 20.7 l/100 km (11.4 US mpg, 13.6 UK mpg, 4.8 km/l) |
| Fuel consumption (economy) – extra urban | 11.8-13.7 l/100 km (19.9 – 17.2 US mpg, 23.9 – 20.6 UK mpg, 8.5 – 7.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.6 sec |
| Acceleration 0 – 62 mph | 6.6 sec |
| Acceleration 0 – 60 mph | 6.3 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Weight-to-power ratio | 5.7 kg/Hp, 175.9 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 254.5 Nm/tonne |
| Power | 394 Hp @ 5200 rpm |
| Power per litre | 65.8 Hp/l |
| Torque | 570 Nm @ 3800 rpm (420.41 lb.-ft. @ 3800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 120.980 |
| Engine displacement | 5987 cm3 (365.35 cu. in.) |
| Number of cylinders | 12 |
| Engine configuration | V-engine |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 80.2 mm (3.16 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 9.5 l (10.04 US qt, 8.36 UK qt) |
| Coolant | 20 l (21.13 US qt, 17.6 UK qt) |
| Kerb Weight | 2240 kg (4938.35 lbs.) |
| Max. weight | 2720 kg (5996.57 lbs.) |
| Max load | 480 kg (1058.22 lbs.) |
| Trunk (boot) space – minimum | 505 l (17.83 cu. ft.) |
| Fuel tank capacity | 100 l (26.42 US gal, 22 UK gal) |
| Length | 5065 mm (199.41 in.) |
| Width | 1912 mm (75.28 in.) |
| Height | 1478 mm (58.19 in.) |
| Wheelbase | 2945 mm (115.94 in.) |
| Front track | 1614 mm (63.54 in.) |
| Rear (Back) track | 1587 mm (62.48 in.) |
| Minimum turning circle | 11.91 m (39.07 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission G-TRONIC |
| Front suspension | Coil spring, Double wishbone, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer, Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 255/45 R18 |
| Wheel rims size | 8.5J x 18 |
The Mercedes-Benz S-Class Coupe (C140) S 600 V12, produced from June 1993 to May 1995, represented the pinnacle of luxury grand touring for the German automaker. This two-door coupe, based on the W140 S-Class platform, offered a more sporting and exclusive alternative to the flagship sedan. The S 600 V12 was the range-topping model, boasting a powerful 6.0-liter V12 engine and a sophisticated automatic transmission. It aimed to combine the renowned comfort and technology of the S-Class with a more dynamic driving experience, appealing to buyers seeking both performance and prestige.
Powertrain & Engine Architecture
The heart of the S 600 V12 was the M120.980 engine, a 5.9-liter (5987 cc) naturally aspirated V12. This engine was a marvel of engineering for its time, featuring all-aluminum construction, dual overhead camshafts (DOHC) per cylinder bank, and multi-port fuel injection. The 60-degree V-angle provided a compact engine layout, aiding in weight distribution. The engine produced 394 horsepower at 5200 rpm and a substantial 570 Nm (420 lb-ft) of torque at 3800 rpm. This power was delivered to the rear wheels through a four-speed 4G-TRONIC automatic transmission. The 4G-TRONIC, while not as sophisticated as later automatic transmissions, was known for its smoothness and reliability. It featured electronic control for optimized shift points based on throttle position and vehicle speed.
Driving Characteristics
The S 600 V12 offered a distinctly grand touring experience. While the 6.6-second 0-60 mph acceleration was respectable for the early 1990s, the focus was more on effortless cruising and refined power delivery. The V12 engine provided abundant torque throughout the rev range, making overtaking easy and relaxed. The automatic transmission, while lacking the responsiveness of a manual, contributed to the car’s smooth and comfortable ride. Compared to the S 500 with its V8 engine, the S 600 V12 offered significantly more power and torque, resulting in a more authoritative and refined driving experience. However, the added weight of the V12 engine did slightly impact handling agility.
Equipment & Trim Levels
As the flagship of the C140 coupe range, the S 600 V12 came standard with a comprehensive list of luxury features. Leather upholstery was standard, along with wood trim, power-adjustable heated seats, a premium sound system, and automatic climate control. Optional extras included a sunroof, upgraded leather, and various driver assistance systems. The interior design emphasized elegance and comfort, with a focus on high-quality materials and meticulous craftsmanship. The S 600 V12 was positioned as a true luxury vehicle, competing with the likes of the Bentley Continental R.
Chassis & Braking
The C140 S-Class Coupe featured a robust chassis with independent suspension all around. The front suspension utilized coil springs and a double wishbone setup, while the rear employed a multi-link independent suspension. Both ends were equipped with a transverse stabilizer bar to reduce body roll. Braking duties were handled by ventilated disc brakes on all four wheels, assisted by an Anti-lock Braking System (ABS). The suspension was tuned for comfort, providing a smooth and controlled ride, even over uneven surfaces. The steering was a recirculating ball system with hydraulic power assistance.
Market Reception & Comparison
The S 600 V12 was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and refined driving experience. However, its high price tag and significant fuel consumption were noted drawbacks. Compared to other S-Class variants, such as the S 500, the S 600 V12 offered a substantial performance upgrade but came at a considerable premium. Fuel economy was predictably poor, with urban consumption reaching 20.7 l/100 km (11.4 mpg). Reliability was generally good, although the complexity of the V12 engine and its associated systems meant that maintenance costs could be high.
Legacy
The C140 S-Class Coupe, and particularly the S 600 V12, remains a sought-after classic among Mercedes-Benz enthusiasts. The M120 V12 engine is renowned for its durability and smooth operation, and well-maintained examples continue to provide a luxurious and rewarding driving experience. While parts availability can be a challenge, the engine’s robust construction means that it can withstand high mileage with proper care. Today, the S 600 V12 represents a unique blend of old-world luxury and high-performance engineering, and it continues to be appreciated for its timeless design and exceptional build quality.
