Check this out
http://www.coolhunting.com/archives/2008/07/carver_one_thre.php
Some video
[ame=http://www.youtube.com/watch?v=lOTAv5QBp_k]YouTube - The Carver - 3 wheels, two seats, infinte fun[/ame]
[ame=http://www.youtube.com/watch?v=tdAaNU0FUrc]YouTube - Carver car - official promotional video[/ame]
Click on the video tab. Very interresting. I wouldn't mind owning one of those.