The self-driving car

In the 2004 film "I, Robot," the main character is a bit of a technophobe who manually pilots his Audi RSQ despite the fact that it--and every other vehicle in the film--is capable of driving itself. The film takes place in 2035, but it's already 2010. Where the hell is my autopilot button?

With all of the advances in vehicle safety and automation tech, that elusive button may be closer than you think. We've rounded up a collection of current and future vehicle automation technologies that may one day form the building blocks of the self-driving car.