Comparison BMW 6 Series Convertible (E64, facelift 2007) 630i (272 Hp) Steptronic & Saab 9-2X 2.0 i 16V T Aero (230 Hp)
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| Brand: | BMW | Saab |
| Model: | 6 Series | 9-2X |
| Generation: | 6 Series Convertible (E64, facelift 2007) | 9-2X |
| Engine / modification: | 630i (272 Hp) Steptronic | 2.0 i 16V T Aero (230 Hp) |
| Production start: | 2007 year | 2003 year |
| Production end: | 2010 year | |
| Coupe type: | Cabriolet | Combi |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 2+2 | 5 |
| Fuel consumption / economy - urban: | 11.6 l/100 km | 11.8 l/100 km |
| Fuel consumption / economy - extra urban: | 6.0 l/100 km | 8.7 l/100 km |
| Fuel consumption / economy - combined: | 8.1 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | |
| Fuel tank volume: | 70 l | 60 l |
| Emission standard: | Euro 4 | |
| CO2 emissions: | 192 g/km | |
| Power: | 272 hp | 230 hp |
| Max power in: | 6700 rpm. | 6000 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | 227 km/h |
| Acceleration from 0 to 100 km/h: | 7.0 sec | |
| Torque: | 320 Nm @ 2750-3000 rpm. | 294 Nm/4000 rpm. |
| Model Engine: | N53B30 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2996 cm3 | 1994 cm3 |
| Engine oil capacity: | 6.5 l | |
| Coolant: | 10.5 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Turbocharging | |
| Position of cylinders: | Inline | Boxer |
| Valvetrain: | DOHC, Double-VANOS | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 12 | 8 |
| Piston Stroke: | 88 mm | 75 mm |
| Cylinder Bore: | 85 mm | 92 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 6 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4820 mm | 4460 mm |
| Width: | 1855 mm | 1695 mm |
| Width including mirrors: | 2036 mm | |
| Height: | 1373 mm | 1465 mm |
| Wheelbase: | 2780 mm | 2525 mm |
| Front track: | 1558 mm | 1465 mm |
| Rear (Back) track: | 1596 mm | 1455 mm |
| Front overhang: | 942 mm | |
| Rear overhang: | 1098 mm | |
| Minimum volume of Luggage (trunk): | 300 l | 790 l |
| Maximum amount of Luggage (trunk): | 350 l | 1744 l |
| Front suspension: | Double wishbone | The depreciated rack |
| Rear suspension: | Multi-link independent | The depreciated rack |
| Max weight: | 2150 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1750 kg | 1445 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 11.4 m | 10.8 m |
| Tire size: | Front wheel tires: 245/50 R17; 245/45 R18; 245/40 R19 | 215/45 R17 |
| Wheel rims size: | Front wheel rims: 7.5J x 17; 8J x 18; 8.5J x 19 |