I will say that the X5 I owned was a big piece of crap. It handled well but that was about it. Throttle & transmission mapping sucked. The interior did not hold up. Compared to my ML (just for example) the interior looked 4 times as aged. Meaning the interior looked about 12 years old after only 3 years.

The 330 sucked also. The stock tires last no miles and got very greasy with any heat. The throttle and transmission mapping sucked. On an autocross course by the time the acceleration kicked in you had to get on the brakes.

The 335's have a ton of issues.

I love BMW's on paper but the reality is much different.

All of that being said an M Roadster is much more of a drivers car than the Crossfire. I am not saying it is faster but it is more involving, has a better seating position, etc.