Re: GDPR to the rescue
It's very much like activation lock on phones. If a previous owner doesn't "log out of itunes" or whatever the equivalent it, then it remains locked to the account of that previous owner.
In days gone by it would be no effort at all to sell a car but retain a key copy, so you can go and help yourself to that car at any time it's unattended. Anyone going to do anything about that?