A bit of splitting hairs, the notable exception I can think of is that if it comes with run-flats, you are expected to return it with run-flats since it's a sp

A bit of splitting hairs, the notable exception I can think of is that if it comes with run-flats, you are expected to return it with run-flats since it's a specification. Higher end cars also usually have a "similar quality" clause in addition, but I don't know how frequently that is enforced, if at all.