The same people that are buying them now.

nah. calls are the play. best case scenario is they have patents at such a level that other companies cannot replicate the functional aspects of that software without encroaching on F's patents. All automakers & dealerships will want this function, so they'll license F to supply it. Will reduce manufacturing costs by reclaiming delinquent payee's vehicles and reselling/repurposing them. Imagine how psyched a dealership would be to sell the same car three or four times just by pressing the "return home" button.

Freedom of speech as a service