cool things with wheels, since 2006
If you really like that sort of stuff, and if you are not allergic to classical music:https://www.youtube.com/watch?v=aibmnB0F780 + https://www.youtube.com/watch?v=bA7jKE0qdFg&feature=player_embedded
Love it! That is pure gold! The second video is banned here in the USA due to copyright blah blah blah Thanks!
Pity about the second video, as that is my favourite. But then the link is still written up there.