3) The "smarter"/ more unnecessarily complex the vehicle, the easier it becomes to enact planned obsolescence, forcing you to forever buy a new vehicle every 5-7 years, if not more frequent.
4) The "smarter" the vehicle, the more they get to track you and sell your data. You'd think "oh in that case I'm sure it'll be like google where I'd pay a reduced price that's offset by the ad money". No, they will obviously happily rip you off on the vehicle itself AND by selling your data. edit: Because guess what? It's working! People are more than happy to fall for this stuff apparently. I mean hell, it's worked for the phone market too, as one other example.
I'd be ecstatic to see the entire industry wiped out by a newcomer on the scene.