Mercedes-Benz - 300 (1988)

• Model year: 1988
• Engine: 2.9 L inline‑6 (M117 engine)
• Power: 162 hp (121 kW) @ 5,800 rpm
• Torque: 181 lb‑ft (245 Nm) @ 3,800 rpm
• Transmission: 4‑speed manual (synchromesh), optional 5‑speed manual
• Drive: Rear‑wheel drive (standard), caution: optional front‑wheel‑drive models are extremely rare
• Fuel type: Regular unleaded gasoline
• Fuel consumption: 20 mpg city / 28 mpg highway (EPA estimate)
• Dimensions: Length 185.4 in / Width 71.1 in / Height 55.7 in
• Wheelbase: 112.8 in
• Weight: 4,240 lb (dry weight)
• Top speed: 113 mph (approximately 182 km/h)
• 0‑60 mph: 12.6 s (typical)
• Fuel tank capacity: 15.7 gal (60 L)
• Seating capacity: 4 (2‑seater with optional NACA side‑by‑side front seats)
• Interior highlights: Leather upholstery, wood‑trimmed doors, brass gauges, and a classic four‑piston brake system.

Understanding the Mercedes-Benz 300 depreciation curve is crucial for buyers and sellers alike. On average, the 300 loses about 15‑20 % of its value in the first year—especially if the vehicle is in high mileage or has visible wear. Over a two‑year span, you can expect a further 8‑12 % depreciation, which translates to a cumulative reduction of roughly 25‑30 % from the original purchase price. After five years, the depreciation rate typically tapers to around 5‑7 % per annum as the car moves into the classic‑car territory.

How does this compare to its contemporaries? Compared to similar models such as the Mercedes‑Benz 280S, the 300 tends to hold its value better due to the inline‑6 engine’s higher perceived refinement and the model’s reputation for reliability. In contrast, BMW 5‑Series cars from the same era often see sharper depreciation curves, especially the manual transmission variants—often falling 20‑25 % in the first two years. The 300’s low number of high‑performance variants (only one horsepower above the 280

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