راح تطرح السيارة في الاسواق العالمية في January 5th at the 2004
وهذي معلومات عنها بالانجليزي
The 645Ci Convertible is, first and foremost a BMW, so dynamic performance comes standard. It shares its 4.4-liter V8 with the 645Ci Coupe - horsepower is 325, maximum torque is 330 lb-ft. Infinite adjustment of virtually all relevant parameters such as valve timing (double-VANOS), valve lift (Valvetronic) and intake manifold runner length enables the engine to adjust instantly to all demands and requirements.
Combined with one of three 6-speed transmissions available on the new model - manual, Steptronic automatic or BMW's Formula 1 inspired Sequential Manual Gearbox (SMG). The new Convertible will reached 60 MPH in about six seconds on its way to an electronically limited top-speed of 155 MPH.
