The BMW 640i xDrive is a coupé with 2 doors and a front mounted powerplant which transmits its power to all four wheels.
It forms part of BMW's F13 LCI model range.
The power is produced by a turbocharged engine of 3 litre capacity. This unit features double overhead camshaft valve gear, 6 cylinder layout, and 4 valves per cylinder. It produces 315.5 bhp (320 PS/235 kW) of power at 5800-6000 rpm, and maximum torque of 450 N·m (332 lb·ft/45.9 kgm) at 1300-4500 rpm.
This power is transferred to the wheels through an 8 speed automatic gearbox.
Its quoted weight at the kerb is 1840 kg.
It is claimed to manage a maxiumum speed of 250 km/h, or 155 mph, officially quoted fuel consumption is 10.9/6.1/7.9 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 183.0 g/km.
Full specs
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| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 2+2 seater fixed-head coupé | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2855 | 112.4 | |
| Voies AV | 1600 | 63 | |
| Voies AR | 1665 | 65.6 | |
| Longueur | 4894 | 192.7 | |
| Largeur | 1894 | 74.6 | |
| Hauteur | 1369 | 53.9 | |
| Garde au sol | 124 | 4.9 | |
| 1.71 | |||
| Poids avec pleins | 1840 kg | 4057 | |
| Répartition poids AV | |||
| Réservoir à essence | 70 litres | 15.4 [18.5] UK [US] gal. | |
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | 0.29 | ||
| maître-couple | 2.23 m² | ||
| SCx | 0.65 | ||
| turbocharged petrol | |||
| Constructeur du moteur | BMW | ||
| Type moteur | |||
| Cylinders | Straight 6 | ||
| Cylindrée | 3 litre 2979 cc (181.79 cu in) |
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| Alésage × Course | 84 × 89.6 mm
3.31 × 3.53 in |
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| Rapport alésage / course | 0.94 | ||
| Distribution | double overhead camshaft (DOHC)
4 Soupapes par cylindre 24 Total vannes |
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| Puissance maximale | 320 PS (315.5 bhp) (235 kW) à 5800-6000 tr/mn |
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| Couple maximale | 450 Nm (332 ft·lb) (45.9 kgm) à 1300-4500 tr/mn |
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| Specific output | 79 kW/litre 107.4 ps/litre 105.9 bhp/litre 1.74 bhp/cu in |
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151.06 Nm/litre
1.83 ft·lb/cu3 |
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| Construction | |||
| Lubrification | Carter humide | ||
| Taux de compression | 10.2:1 | ||
| Carburant | direct petrol injection | ||
| bmep (brake mean effective pressure) | 1898.2 kPa (275.3 psi) | ||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | |||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 496.5 cc | ||
| Aspiration | Turbo | ||
| Compressor | BMW TwinPower twin scroll turbocharger | ||
| Intercooler | |||
| Catalyseur | Y | ||
| Performances | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | 5.2 s | ||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | 24.9 s | ||
| Vitesse | 250 km/h (155 mph) | ||
| Power-to-weight ratio | Higher is better 173.85 PS/tonne (1000 kg) 0.17 PS/kg 127.86 kW/tonne (1000 kg) 0.13 kW/kg 171.47 bhp/tonne (1000 kg) 0.17 bhp/kg 0.08 bhp/lb |
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| Weight-to-power ratio | Lower is better 7.82 kg/kW 13.06 lb/bhp |
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| Consommation | |||
| Consommation | 10.9/6.1/7.9 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 10.9/6.1/7.9 l/100km urban/extra-urban/combined | ||
| km/litre | 9.2/16.4/12.7 km/l urban/extra-urban/combined | ||
| UK MPG | 25.9/46.3/35.8 UK MPG urban/extra-urban/combined | ||
| US MPG | 21.6/38.6/29.8 US MPG urban/extra-urban/combined | ||
| Emissions de CO₂ | 183.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | I | ||
| CO2 Effizienz (DE) | D | ||
| Châssis | |||
| Emplacement de moteur | front | ||
| Engine layout | longitudinal | ||
| Traction | all wheel drive | ||
| Répartition du couple | |||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspension AV | |||
| Suspension AR | |||
| Roues AV | 8J x 17 | ||
| Roues AR | 8J x 17 | ||
| Pneumatiques AV | 225/55 R 17 97Y | ||
| Pneumatiques AR | 225/55 R 17 97Y | ||
| Freins AV/AR | VeDi/VeDi-S-ABS | ||
| Diamètre des freins AV | |||
| Diamètre des freins AR | |||
| Braked area | |||
| Transmission | 8 speed automatic | ||
| Rapport de démultiplication supérieure | 0.67 | ||
| Rapport de pont | 3.23 | ||
| Généralités | |||
| Carfolio.com ID | 391963 | ||
| Production total | |||
| Type mines | |||
| F13 LCI | |||
| RAC rating | 26.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2014 BMW 640i xDrive added 2014-12-19. Last modified 2020-02-02. |
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