I forgot what I read/saw/heard it, but supposedly the skillz involved with racing a two wheeler is easier to translate into a four wheeler. Whereas the vice-versa is not true. I could've swore that the rattled of a few bike racers who become reasonably succesful car racers, but only one (I think) car racer who became a succesful bike racer. OF course, the names elude me. blah.
-shat himself on a SCOOTER.