Self-driving cars only exist as research prototypes. They are as speculative as flying cars. Tesla is the only offender I know about when it comes to real cars

Self-driving cars only exist as research prototypes. They are as speculative as flying cars. Tesla is the only offender I know about when it comes to real cars that actually exist and have obnoxious over-the-air update systems, because normal car companies are constrained by their contracts with dealer networks, so any software updates they might want to push on us would have to be done through the normal vehicle service program. This can easily be avoided by choosing a different mechanic. One can't very well choose a different mechanic if you are stuck a Tesla-like system that pushes diffs at you via radio, and that's what concerns me.