Here is my first rendering of the rear of the upcoming M4 CSL. The covered test mule shows a unique taillight design and a ducktail. There are no other special bodyparts on the test mule, but it is possible they will add some additional side skirts and flicks in the rear to match the big front splitter.
The M4 CSL will feature:
~540 hp
RWD
Automatic transmission
New lightweight wheels
Optional racing seats
Special headlights
Lots of carbon
What do you think about this one?
https://www.instagram.com/germanysfinest43