Elon Musk explains how Tesla owners will make money from its Cybercab fleet:

“For the fleet that is owned by our customers, it’ll be like an Airbnb thing. You can add or subtract your car to the fleet whenever you want.

You can say, ‘I’m going away for a week.’ Just one tap on your Tesla app, your car gets added to the fleet, and it just makes money for you while you’re gone. You can add it to the fleet for a few hours, a few days, or a few weeks.

Whenever you want it back, you can say, ‘Come back,’ and the car will come right back. I’m highly confident that the revenue made by the owner of the car will far exceed the actual monthly payment.”