What Changed

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.

Comparison to Prior Model

2004 BMW 6-Series Convertible
2004 BMW 6-Series Convertible
Price Range ($) $76,300
Length (in) 190.2
Wheelbase (in) 109.4
Width (in) 73.0
Height (in) 54.1
Track (in) 61.3
Exterior Volume (cu. ft.) 365.0
Curb Weight (lbs.) 4178-4189
Legroom Total (in.) 70.8
Passenger Volume (cu. ft.) 82.0
Cargo Volume (cu. ft.)
Driven Wheels
  • RWD
  • 4.4l V8 (325-bhp)
Transmissions A6, M6
City MPG 15-18
Highway MPG 23-26
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