1992 Mercedes-Benz S-class Coupe (C140) Dimensions, Size & Specs

The curb weight of the C140 S-class Coupe ranges from 2005 to 2240 kilograms (4422 to 4938 pounds), while the maximum weight spans between 2600 and 2720 kilograms (5732 to 5998 pounds). This indicates a heavy and solidly built vehicle, contributing to its smooth ride quality and safety but potentially affecting fuel economy and requiring more powerful braking systems.

The luggage capacity of the C140 S-class Coupe is 505 liters (approximately 17.8 cubic feet). This is quite spacious for a coupe, allowing owners ample room for luggage and other cargo during travel, making it suitable for extended trips despite its sportier two-door design.

The C140 comes with rim sizes including 8.5J x 18, 7.5J x 16, paired with tires sized 255/45 R18 and 235/60 R16 respectively. Larger 18-inch rims and wider tires enhance the car’s grip, cornering stability, and overall sporty appearance, while the 16-inch setup may offer a softer ride. This choice optimizes both aesthetics and driving dynamics, fitting its grand tourer character.

Standard garage dimensions typically range around 2.4 to 2.7 meters (7.9 to 8.9 feet) in width and 5.0 to 6.0 meters (16.4 to 19.7 feet) in length. With its length of 5065 mm (about 5.07 meters / 16.6 feet) and width of 1912 mm (1.91 meters / 6.3 feet), the C140 S-class Coupe fits comfortably within typical garage dimensions, although owners should allow extra space for easy door clearance and maneuvering.

The C140’s height ranges from 1452 mm to 1478 mm (57.2 to 58.1 inches), which is relatively low, especially compared to sedans in the S-class lineup. This lower profile contributes to improved aerodynamics and a sportier stance, enhancing handling dynamics and reducing wind noise during highway driving — desirable traits for a luxury coupe.

Compared to the previous C126 generation (produced until 1991), the C140 S-class Coupe is longer and wider. The C140’s length of 5065 mm exceeds the C126’s approximately 5000 mm, and width near 1912 mm is slightly broader. These dimensional increases offer more interior space, a more commanding presence, and improved stability, reflecting technological and design advancements of the 1990s.

Compared to contemporaries like the BMW 8 Series (E31) or Jaguar XJS, the C140 S-class Coupe is generally longer and heavier. Its 5065 mm length and substantial weight give it a larger road presence and a focus on luxury and comfort rather than pure sportiness. This made it appealing to buyers seeking a grand touring coupe with high-end features and spaciousness.

The C140 generation represented a leap in luxury coupe design during the early 1990s, introducing advanced features like electronic stability control (ESP), double-pane windows for noise reduction, and a sophisticated air suspension system for a smoother ride. It offered powerful engine options including V12 variants, emphasizing a blend of performance, comfort, and technological innovation.

Due to its sizable dimensions (over 5 meters long and nearly 2 meters wide) and curb weight between 2005 and 2240 kg, the C140 S-class Coupe tends to prioritize comfort and luxury over fuel economy and nimbleness. While equipped with powerful engines and advanced suspension, its fuel consumption was higher compared to smaller, lighter coupes, and its agility more oriented toward grand touring rather than tight cornering or urban maneuvering.