Isn't anyone here aware of the Google car? They've logged over 140,000 miles to date with no driver intervention. This article is from 11 months ago. This is technology that already exists and Google has done more than any other company in this space.
"MOUNTAIN VIEW, Calif. — Anyone driving the twists of Highway 1 between San Francisco and Los Angeles recently may have glimpsed a Toyota Prius with a curious funnel-like cylinder on the roof. Harder to notice was that the person at the wheel was not actually driving.
The car is a project of Google, which has been working in secret but in plain view on vehicles that can drive themselves, using artificial-intelligence software that can sense anything near the car and mimic the decisions made by a human driver."