Force Dynamics is a company that produces motion simulators for trade show events and the like.  To demonstrate some of the capabilities of their equipment, they rigged up Super Mario Kart with their motion simulator.  If you've ever wondered what Super Mario Kart would be like in a wiggling chair, go take a look.  Sadly, they claim to have sold off the model they had programmed for SMK, so it appears that I might never get to try it out.

Source: Force Dynamics
Direct Youtube Link: http://www.youtube.com/watch?v=nBVOnT36Qw4