In my opinion self-driving vehicle is the future of the transportation. Just imagine how the world would look like if there are only this kind of cars and anybody can rent one of them. This would bring a solution for the parking problem, espeacely in the crowdy cities, would reduce the pulution, the traffic jam and many other issues. More than that I believe the accidents will be less, because the "driver" is not temping to check his smartphone or type messages. It's a great project, and I think that the world will use it sooner than we think.