The google car is great, but I wonder when will they be able to drive with the visible spectrum only, like humans do. No radar, laser range finder, GPS, or pre-mapping the roads. Just the view through the windshield on an unknown road, we can all do that. I would say keep all the other devices if they improve safety, but to really be a human-level driver I think you need to be able to do without them in a pinch.