"Crusher," a 6.5-ton, six-wheeled robotic vehicle designed to negotiate harsh terrain, will be presented along with its predecessor, "Spinner," at Carnegie Mellon's National Robotics Engineering Center on April 28
http://www.cnn.com/2006/TECH/04/13/crusher.robot.ap/index.html
At the bottom right corner, there is a video of it's predecessor Spinner.
spinner