Here's an article noticing that BMW is developing a driverless car by teaching one to run laps around the Laguna Seca racetrack, east of Monterrey, CA. The results seem impressive from the description in that they're letting media types sit in the drivers seat while company wonks fill the remaining leather and are amused at the terror that ensues.
To which I say: Big deal. Every other car maker in the world is actively experimenting with this technology, and not on a closed road course either. Nosiree! Everybody else has their Beta Johnnyycab software controlling the cars of daily commuters on the streets of Denver and the surrounding suburbs.
I am here to attest that this technology is definitely in the beta stages, and will need a bit more wringing out before a more general release. I suggest adding sensors to the left and right sides of the vehicle being controlled to insure that the spot in the adjacent lane is in fact empty before moving into it.