Autonomous driving is coming. GM has been working on it for years. So long infact that the Buick LeSabre was one of the test cars.
Also, the DARPA challenges are aimed strictly at having not only a drive a path, but make decision on obstacles etc. I think they have gone from being in the desert to actually running the last test in the city. GM has been a sponsor for the Carnegie-Mellon entry that won the challenge a few years ago.
http://www.popularmechanics.com/tech...adgets/4229973
Not sure I'm ready to have my car park itself, let alone get in a car and let IT drive me somewhere.
But with GPS being so accurate now, I guess anything is possible.