This may be bending the rules a little, but what a great project. This car was printed with a 3D printer and automatically fires two C02 cartridges when the starting gate goes down. See their website for the build details…http://www.thingiverse.com/thing:5929
Uploaded to YouTube by sliptonic
http://www.youtube.com/watch?v=8d4W5kBPek8
Retrieved Wednesday 16th March 2011 10:31 am EDT