I made this livery for the Mercedes C63 AMG DTM. It's the skin of the BMW M4 DTM, modified for the Mercedes : I replace BMW logos by Mercedes equivalents, and change the position of Akrapovic and H&R logos on the doors.
To install, use Crowtrobot's Custom Livery Tool.
Special thanks to Reiche for his awesome template !
PS : For a better look, use nsss's Tire Mod : http://www.racedepartment.com/downloads/tire-pack.10028/