IMHO I drove both m5 and comp back to back and the stiffness is suspension made me chose the non comp hands down. Even in sport plus the chassis does not feel as stiff or ridged as it does in the comp. I wanted a cruiser when needed and a corner carver when desired and certainly feel I got that with the non comp. I think a big part of it is where you reside. Here in New England the roads are crap most of the year and then in the summer it's just roadwork to repair the crap...vicious cycle of potholes and uneven road surfaces! Now if you are in FL or somewhere that weather does not kill the road surface the difference could be much less. Like most said either way we are all lucky to get to have such a "tough" decision to make
