AP2 - 04-06 have f22c = 7800rpm redlnie/8100rpm fuel cut but 20 ft lbs more tq down low
the 06's now have VSA (vehicle stability assistance) which you can turn off, and also have drive-by-wire throttle.
Test an AP1 and an AP2 out and see which you like better. The AP1 is more of an animal than the AP2, but the AP2 is better behaved in traffic, etc.
m3 would be nice, but maintenance is a bitch. I've read horror stories about them, then at the same time, they're fine. When I was going to buy the RSX, I read horror stories about them and then how they are maintenance free. Your mileage will vary and depending on how the car was driven and maintained will determine how much time in the shop it spends. But you surely already know that by now. I'd say drive them all back to back in the same day if you can. And go from there. Good luck and let us know what you decide!
s2k ftw

