Wondering how would they prevent the faraday cage solution? I guess the OEM could disable the car if it cant phone home but surely that would lead to accidents e.g. blocking the modem while driving.
I could see this being a "feature" of leased vehicles for example since you don't own it.
Tesla's should be fully functional currently, it's the self-driving that's a subscription.
that feature has existed for over a decade. Miss a payment and your engine can be remotely disabled.