A buddy just sent me this link... have never seen this before. Crazy-
Cool but not practical. Hate to see what that interior would look like after a winter season of snow, sleet, and rain. More of a tropical climate option I guess.
A couple of the others looked more practical- like the BMW convertible door:
[ame="http://www.youtube.com/watch?v=EXp2CnPq-os"]BMW Z1 Door opening - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=rUSYk9o7dEI"]1993 Lincoln Mark VIII Drop Door Concept Car - For Sale - YouTube[/ame]