M3s are beautiful cars. I consider most BMWs over priced, but that was may even be under priced for the quality and power that comes from that thing. My co-worker drives an older used one that he put a lot of work into and that thing is STILL a beast. The new ones are just jaw dropping. A fine choice. I've always been an M5 fan because of the older style ones that were a little bigger and boxier. But all the M series ones are beautiful and fast cars.
My friend is an engineer at Borg Warner, who makes the turbo chargers, so I got ahold of their new brochure for the 2014 M3. They're switching back to a turbo I6 with a few less HP but over 100 more ft-lbs of torque. Makes me a bit drooly. I figure I can afford one around 2017 with some good luck.