It's interesting how M5/M6 lose their sticker prices over years!
A 2011 E90 M3 with original 65-70K MSRP and 37k miles is tagged the same 45K now!
http://www.carmax.com/enus/view-car/...esults:results page
OP, I saw your other threads. based on your opinions and situation, M3 is a better choice for you (IMO)