If your modification makes it unroadworthy, you might not be allowed to drive it on public roads
If your modification changes its structure you may need certification that it is still roadworthy
I’m not seeing a case where you’re restricted by law from modifying the car
Software has special legal protections. You can stop it working with impunity, you can break it with impunity, you cannot legally defeat security on the software. Corey Doctorow calls the software protections “felony contempt of business model”
It means you would have no maps, no driver assist, no Internet radio
Anyway if you buy a car it is yours. The worst you can do is break the contact for whatever services are provided by the connectivity. You are allowed to modify a car however you like
Tesla don’t support CD. You’d need to rip those to mp3 and keep them on your phone to play over Bluetooth
If your modification makes it unroadworthy, you might not be allowed to drive it on public roads
If your modification changes its structure you may need certification that it is still roadworthy
I’m not seeing a case where you’re restricted by law from modifying the car
Software has special legal protections. You can stop it working with impunity, you can break it with impunity, you cannot legally defeat security on the software. Corey Doctorow calls the software protections “felony contempt of business model”