I wouldn't buy a Tesla and I wouldn't drive one if it was given to me free. Despite the legal property of a car title, you can't really own a Tesla, they control the software "activation" and "license" that it won't operate without. And even if you don't use the Autopilot sensors, Tesla uses them to collect data for itself.

Waymo would have all the same problems, except I doubt Waymo is targeting cars people would buy at all. Google seems set on delivering a transportation service. It's questionable if they'll ever sell their system at all.