Where can you find some primo vintage desert footwear, a discussion of probability algorithms, and a solar-powered robotics operation? Why, it's Crave's slideshow of 2007 DARPA Urban Challenge entrants!
DARPA's 2005 Grand Challenge was a 132-mile Nevada desert race of autonomous vehicles. This year's Challenge is focused on urban operations--navigating a four-way intersection, performing pretty involved street driving moves--all without a human operator. How much time, manpower, equipment, research and programming does it take to teach a car how to drive itself? Read the story.
Seriously though, check out the boots on that dude from the Arizona team. They're hotter than a scorpion on an overclocked processor.