Stinger Motorsport, located in Metro Detroit races a 2011 Mustang GT in the NASA TT2 Class. They also shipped the Mustang over to the Nürburgring to turn some laps. Tommy Kendall (Yes, THAT Tommy Kendall) was the one who piloted the car on the 'Ring. Here's their Mustang's livery, adapted to the TA2 Mare. Enjoy! Also, a link to the video of Tommy driving the car on the 'Ring.