The BMW 6-Series is the Bavarian automaker's line-up of two-door grand tourers (although it encompasses a four-door GranCoupe as well nowadays). The first generation ran between 1976 and 1989, with fans having to wait until 2003, when the second generation debuted. The second generation's styling was somewhat controversial at the start, but it appears to have aged well, judging by the looks of this 2005 BMW 645Ci Convertible up for sale today. With just 29,800 miles on its wheels, it's a relatively low-miler too. Snap it up while you can!
