Over at OhGizmo! they have an article on a replica of K.I.T., the high-tech car from the 80s series Knight Rider, that was placed on eBay.
For those who weren't even born in 1982, the car was the star of the show. It was full-on AI, being able to talk, drive itself and make decisions.
Filled with all sorts of pseudo-tech, it could interact with every computer in the world and electronic devices in general. The turbo boost let it jump over large objects and vast gaps in the road.
This was one of the first shows to feature David Hasselhoff. Too bad K.I.T. was crash proof :-).