Can someone that test-drove (or maybe owns ? ) both, comment on the difference in comfort and noise levels on the two cars? I understand that Performance has lowered suspension and 20" wheels but how much of a difference does it fell during normal driving? And is there any difference on those two categories (comfort, noise) between the 18" Aero Wheels and the 19" Sport? In theory, there should be a difference but I am looking for someone that has experience on both.