The former head of Google's self-driving car project has said that self-driving cars are decades into the future.* Even if that's too pessimistic, nobody today knows what a self-driving car will look like, what kind of algorithms it will run, and what kind of sensors it will need to get there. I'm afraid this pronouncement is another sign that Mr. Musk is taking his investors for a ride.
* http://spectrum.ieee.org/cars-that-think/transportation/self...