> E.g., Tesla already seems to try and decide the questions in the way manufacturers would likely have them, i.e. suppressing data transmission is tampering and the problem of car reselling doesn't apply as cars cannot be resold anymore without manufacturer involvement.

Not that I doubt that they believe this, or even that they've said or implied it, but is there any official statement from Tesla to the effect of prohibiting, or even trying to limit, resale without Tesla's involvement?