BMW adds a convertible version of the new 4-passenger 6-series. Like the coupe, the 645Ci convertible is powered by a 4.4-liter V8 producing 325 hp. Three 6-speed transmissions are available including a sequential manual. The fully-automatic, power-operated top features a independently operable rear window that can be used when the top is up or down.

BMW adds a convertible version of the new 4-passenger 6-series. Like the coupe, the 645Ci convertible is powered by a 4.4-liter V8 producing 325 hp. Three 6-speed transmissions are available including a sequential manual. The fully-automatic, power-operated top features a independently operable rear window that can be used when the top is up or down.