difficult to get an unbiased opinion in am M3 bmw forum. But trying as much as i can i honestly think the c63 is not a beautiful car to look at. The 6.2l engine seems lazy in design and technological advancement when compared to the E92's V8.
Front valence looks like an aero kit from citroen saxo or similar. Wheel arches look like an after thought. Maybe stuck on?
Lets wait and see if the MB does sub 8:00. Either way its M3 for me m-dct.