The BMW Turbo Prototype is a rear wheel drive car, with its engine located amidships, and a 2 door coupé body designed by Paul Bracq.
It's powered courtesy of a turbocharged engine of 2 litre capacity. This unit features single overhead camshaft valve gear, 4 cylinder layout, and 2 valves per cylinder. It produces 276 bhp (280 PS/206 kW) of power, and maximum torque of 238 N·m (176 lb·ft/24.3 kgm).
The engine powers the wheels compliments of a 4 speed manual 'box.
Claimed weight at the kerb is 980 kg.
Maximum speed stated is 250 km/h (155 mph).
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | Paul Bracq | ||
| dimensions & weights | |||
| Wheelbase | 2400 mm | 94.5 inches | |
| Track/tread (front) | 1550 mm | 61 inches | |
| Track/tread (rear) | 1530 mm | 60.2 inches | |
| Length | 4155 mm | 163.6 inches | |
| Width | 1880 mm | 74 inches | |
| Height | 1100 mm | 43.3 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.73 | ||
| Kerb weight | 980 kg | 2161 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | turbocharged petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 2 litre 1991 cc (121.498 cu in) |
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| Bore × Stroke | 89 × 80 mm
3.5 × 3.15 in |
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| Bore/stroke ratio | 1.11 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 8 valves in total |
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| maximum power output | 280 PS (276 bhp) (206 kW) |
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| maximum torque | 238 Nm (176 ft·lb) (24.3 kgm) |
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| Specific output | 103.4 kW/litre 140.6 ps/litre 138.6 bhp/litre 2.27 bhp/cu in |
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| Specific torque |
119.54 Nm/litre
1.44 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 6.8:1 | ||
| Fuel system | Kugelfischer fuel injection | ||
| bmep (brake mean effective pressure) | 1502.2 kPa (217.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 497.75 cc | ||
| Aspiration | Turbo | ||
| Compressor | |||
| Intercooler | N | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 6.6 s | ||
| Acceleration 0-160km/h (100mph) | 15.7 s | ||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 250 km/h (155 mph) | ||
| Power-to-weight ratio | Higher is better 285.55 PS/tonne (1000 kg) 0.29 PS/kg 210.01 kW/tonne (1000 kg) 0.21 kW/kg 281.63 bhp/tonne (1000 kg) 0.28 bhp/kg 0.13 bhp/lb |
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| Weight-to-power ratio | Lower is better 4.76 kg/kW 7.95 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | mid | ||
| Engine layout | transverse | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | I.MS.TB. | ||
| Rear suspension | |||
| Wheel size front | 9½J x 14 | ||
| Wheel size rear | 9½J x 14 | ||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | 2.37 | ||
| general | |||
| Carfolio.com ID | 96294 | ||
| Production total | 2 | ||
| Model code | |||
| Model family | Concept | ||
| RAC rating | 19.6 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1972 BMW Turbo Prototype added 2002-06-26. Last modified 2022-11-27. |
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