Wiesmann Roadster MF4 is a car that has a 2 door convertible/cabriolet type body with a front mounted engine powering the rear wheels.
Power is produced by a double overhead camshaft, 4.4 litre turbocharged 8 cylinder engine, with 4 valves per cylinder that provides power and torque figures of 401.7 bhp (407 PS/300 kW) at 6400 rpm and 600 N·m (443 lb·ft/61.2 kgm) at 1750-4500 rpm respectively.
The engine powers the wheels via a 6 speed automatic transmission.
The Wiesmann Roadster MF4 weighs a quoted 1390 kg at the kerb.
Maximum speed claimed is 291 km/h (181 mph), manufacturer claimed fuel consumption figures are 14.3/7.0/9.6 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 253.0 g/km.
Full specs
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| bodywork | |||
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| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2507 mm | 98.7 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | 4230 mm | 166.5 inches | |
| Width | 1880 mm | 74 inches | |
| Height | 1190 mm | 46.9 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.69 | ||
| Kerb weight | 1390 kg | 3064 lb | |
| Weight distribution | |||
| fuel tank capacity | 70 litres | 15.4 [18.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | turbocharged petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | N63B44O0 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 4.4 litre 4395 cc (268.199 cu in) |
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| Bore × Stroke | 89 × 88.3 mm
3.5 × 3.48 in |
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| Bore/stroke ratio | 1.01 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 32 valves in total |
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| maximum power output | 407 PS (401.7 bhp) (300 kW) at 6400 rpm |
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| maximum torque | 600 Nm (443 ft·lb) (61.2 kgm) at 1750-4500 rpm |
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| Specific output | 68.2 kW/litre 92.7 ps/litre 91.4 bhp/litre 1.5 bhp/cu in |
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| Specific torque |
136.52 Nm/litre
1.65 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 9.3:1 | ||
| Fuel system | EFI | ||
| bmep (brake mean effective pressure) | 1715.5 kPa (248.8 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 549.38 cc | ||
| Aspiration | Turbo | ||
| Compressor | 2 twinscroll turbochargers | ||
| Intercooler | Y | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 4.6 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 291 km/h (181 mph) | ||
| Power-to-weight ratio | Higher is better 293.01 PS/tonne (1000 kg) 0.29 PS/kg 215.5 kW/tonne (1000 kg) 0.22 kW/kg 288.99 bhp/tonne (1000 kg) 0.29 bhp/kg 0.13 bhp/lb |
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| Weight-to-power ratio | Lower is better 4.64 kg/kW 7.75 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 14.3/7.0/9.6 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 14.3/7.0/9.6 l/100km urban/extra-urban/combined | ||
| km/litre | 7.0/14.3/10.4 km/l urban/extra-urban/combined | ||
| UK MPG | 19.8/40.4/29.4 UK MPG urban/extra-urban/combined | ||
| US MPG | 16.4/33.6/24.5 US MPG urban/extra-urban/combined | ||
| Carbon dioxide emissions | 253.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | L | ||
| CO2 Effizienz (DE) | G | ||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | power assisted rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | I.DW.CS.ARB. | ||
| Rear suspension | I.DW.TA.CS.ARB. | ||
| Wheel size front | 8 x 18 | ||
| Wheel size rear | 8 x 18 | ||
| Tyres front | 245/45 x 18 | ||
| Tyres rear | 245/45 x 18 | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 6 speed automatic | ||
| Top gear ratio | |||
| Final drive ratio | 3.85 | ||
| general | |||
| Carfolio.com ID | 235301 | ||
| Production total | |||
| Model code | |||
| RAC rating | 39.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2010 Wiesmann Roadster MF4 added 2011-03-02. Last modified 2020-02-02. |
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