[Joeri]

But a car that can drive me while I sleep and become a Taxi while I work is something I would go into debt for.

I don't think most regular people will actually own fully autonomous cars to rent them out. Big players will do the capital expenditure to buy a fleet, and rent out transportation service. Renting in uber style will be basically the price of owning, but without the up-front capital expenditure, and it will provide the convenience of choosing the type of car for the specific transport needs of the moment. The margins of these rent-a-fleet services will be low, so you won't have a hope as individual car owner of actually buying a car and renting it out without turning it into a loss compared to just renting.

[eof]

Certainly if most people owned them, there wouldn't be a market to rent them out.