All of those questions can only be answered with a big shrug. I don't know. I guess there exist cases of ownership disputes where NFTs would provide an easy answer, but it's fringe. Errors in transactions would probably be tough to handle, so I don't know what would be done there. I specified the chassis-reference on the car to say something that is unlikely to change for the car, but of course you end up with the "Ship of Theseus"-paradox.

And that brings it back to: it's a nice solution to a problem which doesn't really exist, and the application of it towards zero-value digital assets is a huge mess.