| Common information: |
| Model: | BMW 645 Ci |
| Produced by | BMW |
| Year begin | 2004 |
| Car category | Large/luxury cars |
| Country of origin car | Germany |
| Chassis type | Coupe |
| Drive | Rear tire dimensions |
| Car dimensions: |
| Car overall length: | 4830 mm |
| Car overall width | 1860 mm |
| Car overall height | 1380 mm |
| Car cargo space | 450 l |
| Passenger space | 4130 l |
| Wheelbase | 2830 mm |
| Seats | 4 |
| Max no. of doors | 2 |
| Car weight | 1690 kg |
| Car max weight with load | 2065 kg |
| Engine/fuel: |
| engine size | 4398 cm3 |
| Engine type | V8 |
| Engine location | Front longitudinal |
| Valves per cylinder | 4 |
| Bore x stroke | 92.0 x 82.7 mm (3.6 x 3.3 inches) |
| Compression | 10.0:1 |
| Fuel control | Double overhead cam (DOHC) |
| Fuel system | Injection |
| Fuel type | Gasoline unleaded 98 |
| Fuel mixed driving | 12 l |
| Fuel_capacity | 70 l |
| Speed / acceleration / power: |
| Top speed | 250 km/h |
| Acceleration 0-100 km/h | 5.6 s |
| Max. power | 248.1196 kW 6100 ot (332.6 l.s.) |
| Power weight ratio | 0.1468128 kW/kg |
| Max. torque | 450 Nm/ 3600 ot |
| Brakes, suspension, cooling system: |
| Front brakes | Ventilated disks |
| Rear brakes | Ventilated disks |
| Brake details | Antiblocking system (ABS). |
| Steering | Traction control. Electronic stabilasation program (ESP). |
| Gearbox | 6-speed automatic or 6-speed manual |
| Cooling system | Liquid |
| Transmission | 6-speed automatic or 6-speed manual |
| Other: |
| Front tire dimensions | 205/55-R16 |
| Rear tire dimensions | 245/45-R18 |
| Airbags | 8 |