Comparison BMW 6 Series Convertible (F12) 640i (320 Hp) xDrive Steptronic & Volvo C70 Coupe Cabrio II 2.4 i 20V (170 Hp)
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| Brand: | BMW | Volvo |
| Model: | 6 Series | C70 |
| Generation: | 6 Series Convertible (F12) | C70 Coupe Cabrio II |
| Engine / modification: | 640i (320 Hp) xDrive Steptronic | 2.4 i 20V (170 Hp) |
| Production start: | 2013 year | 2005 year |
| Production end: | 2015 year | 2009 year |
| Coupe type: | Cabriolet | Coupe - Cabriolet |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 4 | 4 |
| Fuel consumption / economy - urban: | 11.2-11.4 l/100 km | 12.9 l/100 km |
| Fuel consumption / economy - extra urban: | 6.5-6.6 l/100 km | 6.7 l/100 km |
| Fuel consumption / economy - combined: | 8.2-8.4 l/100 km | 9.0 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | |
| Fuel tank volume: | 70 l | 62 l |
| Emission standard: | Euro 6 | |
| CO2 emissions: | 192-195 g/km | |
| Power: | 320 hp | 170 hp |
| Max power in: | 5800-6000 rpm. | 6000 rpm. |
| Maximum speed: | 250 km/h | 220 km/h |
| Acceleration from 0 to 100 km/h: | 5.4 sec | 9.1 sec |
| Torque: | 450 Nm @ 1300-4500 rpm. | 230 Nm/4400 rpm. |
| Model Engine: | N55B30 | B5244S4 |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 2979 cm3 | 2435 cm3 |
| Engine oil capacity: | 6.5 l | |
| Coolant: | 10.2 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | DOHC | |
| Number of cylinders: | 6 | 5 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10.2 | 10.3 |
| Piston Stroke: | 89.6 mm | 90 mm |
| Cylinder Bore: | 84 mm | 83 mm |
| Wheel Drive: | All wheel drive (4x4) | Front wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | 5 |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4894 mm | 4582 mm |
| Width: | 1894 mm | 1820 mm |
| Height: | 1365 mm | 1400 mm |
| Wheelbase: | 2855 mm | 2640 mm |
| Front track: | 1600 mm | 1550 mm |
| Rear (Back) track: | 1665 mm | 1560 mm |
| Ride height(clearance): | 123 mm | |
| Minimum volume of Luggage (trunk): | 300 l | 200 l |
| Maximum amount of Luggage (trunk): | 350 l | 404 l |
| Front suspension: | Double wishbone | Helical spring |
| Rear suspension: | Multi-link independent | Helical spring |
| Max weight: | 2400 kg | 2090 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1910 kg | 1646 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 11.7 m | |
| Tire size: | 225/55 R17; 245/45 R18; 275/45 R18; 245/40 R19; 275/35 R19; 245/35 R20; 275/30 R20 | 215/55 R16 |
| Wheel rims size: | 8J x 17; 8J x 18; 9J x 18; 8.5J x 19; 9J x 19; 8.5J x 20; 9J x 20 | R16 |