>Long before that is the case, there'd be no incentive for the manufacturer to sell the car at all; they'd make more money just pushing the button themselves th

>Long before that is the case, there'd be no incentive for the manufacturer to sell the car at all; they'd make more money just pushing the button themselves the minute the car rolled off the assembly line. So there will be many tens of millions of people who want to buy such a car, plus car rental agencies, but no car manufacturer will sell to them? That seems pretty unlikely. Can you think of any similar case?