The DKW Sonderklasse Coupé is a coupé with 2 doors and a front mounted powerplant which delivers its power through the front wheels.
It forms part of DKW's F 91 family of cars.
The 0.9 litre engine is a naturally aspirated, two stroke, 3 cylinder that produces 34 bhp (34.5 PS/25.4 kW) of power at 4000 rpm, and maximum torque of 69 N·m (51 lb·ft/7 kgm) at 2000 rpm.
The engine powers the wheels compliments of a 3 speed manual gearbox.
It weighs a claimed 879 kg at the kerb.
Maximum stated speed is 126 km/h (78 mph).
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2350 mm | 92.5 inches | |
| Track/tread (front) | 1194 mm | 47 inches | |
| Track/tread (rear) | 1245 mm | 49 inches | |
| Length | 3962 mm | 156 inches | |
| Width | 1600 mm | 63 inches | |
| Height | 1448 mm | 57 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.69 | ||
| Kerb weight | 879 kg | 1938 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Auto Union | ||
| Engine code | AU 900 | ||
| Cylinders | Straight 3 | ||
| Capacity | 0.9 litre 903 cc (55.104 cu in) |
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| Bore × Stroke | 71 × 76 mm
2.8 × 2.99 in |
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| Bore/stroke ratio | 0.93 | ||
| Valve gear | two stroke (TS)
0 valves per cylinder 0 valves in total |
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| maximum power output | 34.5 PS (34 bhp) (25.4 kW) at 4000 rpm |
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| maximum torque | 69 Nm (51 ft·lb) (7 kgm) at 2000 rpm |
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| Specific output | 28.1 kW/litre 38.2 ps/litre 37.7 bhp/litre 0.62 bhp/cu in |
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| Specific torque |
76.41 Nm/litre
0.92 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 6.5:1 | ||
| Fuel system | 1 Solex carburettor | ||
| bmep (brake mean effective pressure) | 480.1 kPa (69.6 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 4 | ||
| Engine coolant | Water | ||
| Unitary capacity | 301 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 17.3 s | ||
| Acceleration 0-60mph | 28 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | 23.5 s | ||
| Standing kilometre | |||
| Maximum speed | 126 km/h (78 mph) | ||
| Power-to-weight ratio | Higher is better 39.22 PS/tonne (1000 kg) 0.04 PS/kg 28.84 kW/tonne (1000 kg) 0.03 kW/kg 38.68 bhp/tonne (1000 kg) 0.04 bhp/kg 0.02 bhp/lb |
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| Weight-to-power ratio | Lower is better 34.67 kg/kW 57.91 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 | front wheel drive | ||
| Torque split | N/A | ||
| Steering | rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | I.TL. | ||
| Rear suspension | I.TL. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 5.60 x 15 | ||
| Tyres rear | 5.60 x 15 | ||
| Brakes F/R | 2LS/LT-DH | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | 0.93 | ||
| Final drive ratio | 4.71 | ||
| general | |||
| Carfolio.com ID | 41294 | ||
| Production total | |||
| Model code | |||
| Model family | F 91 | ||
| RAC rating | 9.4 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1954 DKW Sonderklasse Coupé added before December 1995. Last modified 2023-04-23. |
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