You can either trade or sell the car. I would prefer to sell the old car if I can get a good price for it. Also, if they car doesn't work anymore for some reason you can take it to a junk yard and get some money for it. People are always looking to get used parts.
Name something.. Hmm.. People normally sell their old ones away I suppose? Or have traded it for a lower price on a new car. If the car is no longer road-worthy, it is normally scrapped.
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