The BMW X6 was officially unveiled as the newest addition to the fleet of BMWs serving as MotoGP safety car back in May -
http://www.m3post.com/forums/showthread.php?t=258036
The X6 M is now not only serving as a safety car, but also setting the pace as the pace car, most recently at the Red Bull U.S. Grand Prix held at Laguna Seca raceway this past weekend. The X6 M with its V8 555hp is able to serve as its duties competently in stock form.