The BMW Z4 M Roadster is a 2 door convertible/cabriolet style road car with a front mounted engine powering the rear wheels.
The Z4 M Roadster is part of BMW's E85 series of cars.
Its engine is a naturally aspirated petrol, 3.2 litre, double overhead camshaft 6 cylinder with 4 valves per cylinder. This unit has an output of 338 bhp (343 PS/252 kW) of power at 7900 rpm, and maximum torque of 365 N·m (269 lb·ft/37.2 kgm) at 4900 rpm.
The engine transmits power to the wheels compliments of a 6 speed manual transmission.
The stated kerb weight is 1485 kg.
Maximum stated speed is 250 km/h, which equates to 155 mph, manufacturer claimed fuel consumption is 18.2/8.6/12.1 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 292.0 g/km.
Full specs
|
|
|||
| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 2 seater convertible/cabriolet | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2497 | 98.3 | |
| Voies AV | 1486 | 58.5 | |
| Voies AR | 1516 | 59.7 | |
| Longueur | 4113 | 161.9 | |
| Largeur | 1781 | 70.1 | |
| Hauteur | 1302 | 51.3 | |
| Garde au sol | |||
| 1.65 | |||
| Poids avec pleins | 1485 kg | 3274 | |
| Répartition poids AV | |||
| Réservoir à essence | |||
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | 0.37 | ||
| maître-couple | 1.92 m² | ||
| SCx | 0.71 | ||
| naturally aspirated petrol | |||
| Constructeur du moteur | BMW | ||
| Type moteur | S54B32 | ||
| Cylinders | Straight 6 | ||
| Cylindrée | 3.2 litre 3246 cc (198.083 cu in) |
||
| Alésage × Course | 87 × 91 mm
3.43 × 3.58 in |
||
| Rapport alésage / course | 0.96 | ||
| Distribution | double overhead camshaft (DOHC)
4 Soupapes par cylindre 24 Total vannes |
||
| Puissance maximale | 343 PS (338 bhp) (252 kW) à 7900 tr/mn |
||
| Couple maximale | 365 Nm (269 ft·lb) (37.2 kgm) à 4900 tr/mn |
||
| Specific output | 77.6 kW/litre 105.6 ps/litre 104.1 bhp/litre 1.71 bhp/cu in |
||
|
112.45 Nm/litre
1.36 ft·lb/cu3 |
|||
| Construction | |||
| Lubrification | Carter humide | ||
| Taux de compression | 11.5:1 | ||
| Carburant | |||
| bmep (brake mean effective pressure) | 1413 kPa (204.9 psi) | ||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | |||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 541 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalyseur | Y | ||
| Performances | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | 5 s | ||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Vitesse | 250 km/h (155 mph) | ||
| Power-to-weight ratio | Higher is better 230.77 PS/tonne (1000 kg) 0.23 PS/kg 169.73 kW/tonne (1000 kg) 0.17 kW/kg 227.61 bhp/tonne (1000 kg) 0.23 bhp/kg 0.1 bhp/lb |
||
| Weight-to-power ratio | Lower is better 5.89 kg/kW 9.84 lb/bhp |
||
| Consommation | |||
| Consommation | 18.2/8.6/12.1 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 18.2/8.6/12.1 l/100km urban/extra-urban/combined | ||
| km/litre | 5.5/11.6/8.3 km/l urban/extra-urban/combined | ||
| UK MPG | 15.5/32.8/23.3 UK MPG urban/extra-urban/combined | ||
| US MPG | 12.9/27.4/19.4 US MPG urban/extra-urban/combined | ||
| Emissions de CO₂ | 292.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | M | ||
| CO2 Effizienz (DE) | |||
| Châssis | |||
| Emplacement de moteur | front | ||
| Engine layout | longitudinal | ||
| Traction | rear wheel drive | ||
| Répartition du couple | N/A | ||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspension AV | |||
| Suspension AR | |||
| Roues AV | 8J x 18 EH2 IS42 LM | ||
| Roues AR | 9J x 18 EH2 IS30 LM | ||
| Pneumatiques AV | 225/45 ZR 18 | ||
| Pneumatiques AR | 255/40 ZR 18 | ||
| Freins AV/AR | VeDi/VeDi-S-ABS | ||
| Diamètre des freins AV | 345 mm | ||
| Diamètre des freins AR | 328 mm | ||
| Braked area | |||
| Transmission | 6 speed manual | ||
| Rapport de démultiplication supérieure | 0.85 | ||
| Rapport de pont | 3.62 | ||
| Généralités | |||
| Carfolio.com ID | 133694 | ||
| Production total | |||
| Type mines | |||
| E85 | |||
| RAC rating | 28.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
|
2005 BMW Z4 M Roadster added 2005-10-25. Last modified 2013-02-28. |
|||
