The BMW 3/15 Cabriolet is a convertible/cabriolet with 2 doors and a front mounted engine which delivers its power through the rear wheels.
It is part of BMW's DA 2 model series.
Its 0.7 litre engine is a naturally aspirated, side valve, 4 cylinder that has an output of 15 bhp (15.2 PS/11.2 kW) of power at 3000 rpm.
The engine powers the wheels via a 3 speed manual gearbox.
Quoted weight at the kerb is 535 kg.
Its maximum speed claimed is 76 km/h, which is 47 mph.
Full specs
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| bodywork | |||
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| Body type | 4 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 1905 mm | 75 inches | |
| Track/tread (front) | 1000 mm | 39.4 inches | |
| Track/tread (rear) | 1030 mm | 40.6 inches | |
| Length | 3000 mm | 118.1 inches | |
| Width | 1275 mm | 50.2 inches | |
| Height | 1625 mm | 64 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.57 | ||
| Kerb weight | 535 kg | 1179 lb | |
| Weight distribution | |||
| fuel tank capacity | 20 litres | 4.4 [5.3] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | |||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 0.7 litre 749 cc (45.707 cu in) |
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| Bore × Stroke | 56 × 76 mm
2.2 × 2.99 in |
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| Bore/stroke ratio | 0.74 | ||
| Valve gear | side valve (SV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 15.2 PS (15 bhp) (11.2 kW) at 3000 rpm |
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| maximum torque | |||
| Specific output | 14.9 kW/litre 20.3 ps/litre 20 bhp/litre 0.33 bhp/cu in |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 5.6:1 | ||
| Fuel system | 1 Solex carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | 2 | ||
| Engine coolant | Water | ||
| Unitary capacity | 187.25 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 | 76 km/h (47 mph) | ||
| Power-to-weight ratio | Higher is better 28.43 PS/tonne (1000 kg) 0.03 PS/kg 20.91 kW/tonne (1000 kg) 0.02 kW/kg 28.04 bhp/tonne (1000 kg) 0.03 bhp/kg 0.01 bhp/lb |
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| Weight-to-power ratio | Lower is better 47.83 kg/kW 79.89 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 | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 27 x 4 | ||
| Tyres rear | 27 x 4 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 5.35 | ||
| general | |||
| Carfolio.com ID | 802285 | ||
| Production total | 1374 | ||
| Model code | |||
| Model family | DA 2 | ||
| RAC rating | 7.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1929 BMW 3/15 Cabriolet added 2024-05-01. Last modified 2024-05-01. |
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