I wonder how the economics of owning cars will change when everything is computerized. In logistics (specifically trucks), it would incredibly reduce the total cost of shipping if you eliminate Less-than Truck Loads (LTLs) and empty back hauls. I imagine it is similar with transporting people, if there was a "taxi" like company that could maximize the use of an automated car, the total amount of cars necessary in the world would go dramatically down. Right now most cars spend most of their lives idle. Great side effects include no auto insurance and much less emitted greenhouse gasses.

The number of millennials buying cars is already extremely low, computerized cars would most likely continue to reduce the number of new car owners.