Romain Dumas, Marc Lieb, Timo Bernhard, Marcel Tiemann won the 2009 ADAC Ravenol 24h Nürburgring drivers’ championship, racing for Manthey Racing — Porsche 997 GT3-RSR.
It was one of Romain Dumas, Marc Lieb, Timo Bernhard, Marcel Tiemann’s 2 ADAC Ravenol 24h Nürburgring titles (2007, 2009).