[rFactor] Manthey Porsche 997 GT3 RSR 20h Race

Special thanks to "Manthey Racing" for giving us the permission for using their name and skin for our team.
So we´re going to start at the 20h race from 26th-29th January 2012 with "Manthey SimRacing"-skin and teamname.
THANKS OLAF! :)