Photos: Gearing up for DARPA Challenge Summary: Qualifying is over as the finalists prepare for the $2 million race Oct. 8 for robot-driven vehicles. By Bill Detwiler | July 19, 2006 -- 11:36 GMT (04:36 PDT) Follow @billdetwiler Previous | Next Image 15 of 16 Ghostrider Ghostrider is walked off the course. Topic: Emerging Tech Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.