It makes sense that Google would do it in a way. They know a lot more about that kind of thing. I wonder how many of us are willing to relinquish control in that way. I think at first people will probably use it like an autopilot once in a while and slowly use it more and more. The trouble with all these things is it keeps adding cost to our transportation. Cars are getting pretty expensive if you ask me. The greatest benefit will be with people who are too old to drive or can't for other reasons, and emergency accident avoidance.