Who won the 2007 ADAC Ravenol 24h Nürburgring championship?

Romain Dumas, Marc Lieb, Timo Bernhard, Marcel Tiemann won the 2007 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).