Glad I stepped up to the car I really wanted. Was sold on 530, with premium and cold weather package, but really liked the power of the 545. Traded in my '99 M3 Convertible, which was one of the most exciting cars I have owned, but now with the 545, I now have a rocket with more room and luxury. Considered the new M45, A6 4.2, and Lexus GS, but after driving all, you realize why BMW is the one they are all striving to be.
Navigation system, acceleration, tight feel of active steering, sound system, idrive, quiet cabin, styling