Researches at Rice University have developed a Nano car,
Its an interesting read, and for all you nano-technology fans this seems like a good step forward.
“And with four independently rotating axles, built-in suspension, and oversized wheels, it looks more like a racer in the DARPA Challenge than any car on route 95. With its rotating axles, the Nanocar moves directionally, which means either forward or backward, with its wheels rolling, as opposed to sliding back and forth which is commonly done on the nanoscale. The oversized wheels and suspension allow the Nanocar to drive over positive and negative atomic steps, or nanoscale speedbumps and potholes, if you will, necessary for even the thin layer of gold that … “