Your used cars are only so cheap because most people don't buy old used cars. If they did as you suggest, then it would no longer be such a good deal.

sure, but also that would drive new car prices down and put pressure on dealerships to stop adding ridiculous fees on top of the MSRP. and more used cars on the road means more independent mechanics means cheaper service. Japan is a great example. in addition to their strong domestic market, the driving culture there is a decent size tourist industry unto itself. there are more tracks per capita in Japan than any other country