Some roadsters are OK. At 6'4", I like to drive fairly upright (at least compared to my wife), and I fit in the Z3/Z4, Mini Cooper, SLK350, and 350Z roadsters fine. Honda S2000, no way. Celica, I was sardined. Also couldn't fit in a Corvette, but it was at an auto show where the seat controls were disabled (or broken from abuse), and I think the seat wasn't as far back or down as it could go.

Bears, beets, Battlestar Galactica.