Entry: retire (verb)
Synonyms: absent oneself, decamp, depart, exit, go, go away, hand over, leave service, make vacant, part, relinquish, rescind, resign, rusticate, secede, sever connections, stop working, take off, withdraw, yield
(as per dictionary.com, truncated) And as an American, I can't say that I've ever "retired" my car. I just put new tires on... ;)