Production Codes
| Production dates | Production Code | Model | Chassis | Engine | Power | Drivetrain | Steering | Region |
|---|---|---|---|---|---|---|---|---|
| 2004-03 - 2007-07 | EK31 | 630i | Convertible | N52B30O0 | 190kW | Rear-Wheel Drive | left | Europe |
| 2004-04 - 2007-07 | EK32 | 630i | Convertible | N52B30O0 | 190kW | Rear-Wheel Drive | right | Europe |
| 2002-09 - 2005-08 | EK71 | 645Ci | Convertible | N62B44O0 | 245kW | Rear-Wheel Drive | left | Europe |
| 2002-09 - 2005-08 | EK72 | 645Ci | Convertible | N62B44O0 | 245kW | Rear-Wheel Drive | right | Europe |
| 2002-09 - 2005-08 | EK73 | 645Ci | Convertible | N62B44O0 | 245kW | Rear-Wheel Drive | left | USA |
| 2005-02 - 2007-07 | EK11 | 650i | Convertible | N62B48O1 | 270kW | Rear-Wheel Drive | left | Europe |
| 2005-04 - 2007-07 | EK12 | 650i | Convertible | N62B48O1 | 270kW | Rear-Wheel Drive | right | Europe |
| 2005-02 - 2007-07 | EK13 | 650i | Convertible | N62B48O1 | 270kW | Rear-Wheel Drive | left | USA |