used M3 
2002 BMW M3 Coupe 2dr Coupe (3.2L 6cyl 6M)
It's great new, but what about after 50k?
 Got mine used w/ 49k mi on it. Would not buy brand new - not worth 55k+ (w/options). The car is very well-balanced in terms of power, handling, comfort, and luxury (mine is loaded - heated seats, nav, park sensors, etc.). Don't worry about all this rod bearing talk - it's a RECALL! (ie. get it done for free) and you wont have to worry because it will have new warranty (motor ONLY). The disappointment is the trans/differential. Gearbox is inconsistent - sometimes it's fine but othertimes it grinds from 1-2 at slow speeds. The diff is noticably clunky w/excessive lash-feels like it will fail. Maybe the newer car owners don't feel it but after the car hits 50k be aware. The warranty ends.