This is a joke (Score 1)

This was a spoof from venture capital firm Draper Fisher Jurvetson for the Sand Hill Challenge (VC Soap Box derby in Silicon Valley about 5 years ago). Its been picked up before as a serious story, here is Jurvetson unveiling the nanocar:

http://www3.flickr.com/photos/jurvetson/452668/in/ set-44201/