I'm leaving for the lack of torque, and the lack of design change in the interior. I have enjoyed owning my M3, but the interior looks similar to my buddy's 03 M3, which sucks, and the torque is killing me. I have owned a GT-R (left because school cost too much and the GT-R had to go), Supra TT (lost in a divorce), and several big block muscle cars. I love the exterior of the M and the redline is amazing, but when you can't stretch the legs, the torque factor kills it. It also wasn't worth it to me to put a blower on the car. I'm not sure what my next purchase will be, but it'll have torque.