BMW 503 Convertible is an automobile that has a 2 door convertible/cabriolet body style designed by Albrecht Goertz with a front positioned engine that delivers power to the rear wheels.
Its engine is a naturally aspirated petrol, 3.2 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. It develops 138 bhp (140 PS/103 kW) of power at 4800 rpm, and maximum torque of 216 N·m (159 lb·ft/22 kgm) at 3800 rpm.
A 4 speed manual 'box delivers the power to the driven wheels.
Claimed weight at the kerb is 1500 kg.
Maximum stated speed is 190 km/h or 118 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | Albrecht Goertz | ||
| dimensions & weights | |||
| Wheelbase | 2835 mm | 111.6 inches | |
| Track/tread (front) | 1400 mm | 55.1 inches | |
| Track/tread (rear) | 1420 mm | 55.9 inches | |
| Length | 4750 mm | 187 inches | |
| Width | 1710 mm | 67.3 inches | |
| Height | 1440 mm | 56.7 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.68 | ||
| Kerb weight | 1500 kg | 3307 lb | |
| Weight distribution | |||
| fuel tank capacity | 75 litres | 16.5 [19.8] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 3.2 litre 3169 cc (193.384 cu in) |
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| Bore × Stroke | 82 × 75 mm
3.23 × 2.95 in |
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| Bore/stroke ratio | 1.09 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (Net) |
140 PS (138 bhp) (103 kW) at 4800 rpm |
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| maximum torque (Net) |
216 Nm (159 ft·lb) (22 kgm) at 3800 rpm |
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| Specific output (Net) |
32.5 kW/litre 44.2 ps/litre 43.5 bhp/litre 0.71 bhp/cu in |
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| Specific torque (Net) |
68.16 Nm/litre
0.82 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 7.3:1 | ||
| Fuel system | 2 Zenith 32 NDIX carburettors | ||
| bmep (brake mean effective pressure) | 856.5 kPa (124.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 396.13 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 190 km/h (118 mph) | ||
| Power-to-weight ratio | Higher is better 93.28 PS/tonne (1000 kg) 0.09 PS/kg 68.6 kW/tonne (1000 kg) 0.07 kW/kg 92 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 14.58 kg/kW 24.35 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 | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | 3.500 | ||
| Turning circle | |||
| Front suspension | I.TB. | ||
| Rear suspension | LA.TB. | ||
| Wheel size front | 4½E x 16 | ||
| Wheel size rear | 4½E x 16 | ||
| Tyres front | 6.00-16 | ||
| Tyres rear | 6.00-16 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 284 mm | ||
| Rear brake diameter | 284 mm | ||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.89 | ||
| general | |||
| Carfolio.com ID | 249876 | ||
| Production total | 139 | ||
| Model code | |||
| RAC rating | 33.4 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1955 BMW 503 Convertible added 2011-07-01. Last modified 2020-02-02. |
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