The thing about cars is that they contribute to the yokels having this confounded sense of independence. They think they can just hop in and drive where ever they want without concern for carbon emissions or anything. Put them in robotic cars and (eventually) they'll go only where they need to go, per the discretion of their betters. Just ask Elon Musk -- it's time for all of us to stop being so selfish and just get on the bus. Besides, getting behind the wheel of a sweet car is fun, and there's no room for fun in a worker's paradise.
Sarcasm noted.