I haven't driven any 3, but coming from "sporty" cars like SE-R SpecV and Audi A3, I'm amazed by my 5's handling feel every time I'm behind the wheel. And that's with 16-inch stock wheels. Tires make a big difference. I just got a new set of tires a couple months ago - Pirelli P7 Plus. Disappointed with their soft sidewall and noise on rough freeways. The stock Bridgestones feel more confident in cornering, and are not any noisier.
30 more horses and a quieter interior would make this thing close to perfect.
30 more horses and a quieter interior would make this thing close to perfect.