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BMW 503 Coupé Prototyp, 1955
| Manufacturer | BMW |
| Model | 503 Coupé Prototyp |
| Year of production | 1955 |
| Start of production | 1955 |
| End of production | 1955 |
| Body type |
coupe |
| Number of doors | 2 |
| Number of seats | 2+2 |
| Engine position |
front |
| Drive wheel |
rear |
| Fuel |
petrol |
| Number of cylinders |
V8 |
| Cooling |
liquid |
| Capacity | 3168 ccm, 192.4 cu-in |
| Bore | 82.0 mm, 3.228 in |
| Stroke | 75.0 mm, 2.953 in |
| Compression ratio | 7.3:1 |
| Valve Gear |
OHV |
| Valves per cylinder | 2 |
| Fuel system |
carburator, 2 x Zenith |
| Aspiration |
normal |
| Max power [kW / PS / hp] |
103 / 140 / 138 at 4800 rpm |
| Max torque [Nm / ft-lb] |
216 / 159 at 3000 rpm |
| Total power (hybrid) | |
| Total torque (hybrid) |
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| Gearbox | M4 |
| Gearbox (option) | |
| Wheelbase | 2835 mm, 111.6 in |
| Front track | 1400 mm, 55.1 in |
| Rear track | 1420 mm, 55.9 in |
| Length | 4750 mm, 187 in |
| Width | 1710 mm, 67.3 in |
| Height | 1440 mm, 56.7 in |
| Weight | 1400 kg, 3086 lb |
| Maximum speed |
190 km/h, 118 mph |
| 0-100 km/h | 12.8 s |
| Standing km | |
| Foto: BMW |
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