Rockenfeller also won the GT2 class at the 24 Hours of Le Mans, driving with Lieb and Leo Hindrey for Alex Job Racing.

He won in the ALMS at Houston and finished second in LMP2 class at Petit Le Mans, driving a Porsche RS Spyder for Penske Racing.

Despite not winning any races, Rockenfeller and Prémat won the title at the 2008 1000 km of Silverstone, after an accident on lap 46 for the Peugeot 908 HDi FAP of Nicolas Minassian and Marc Gené.

After qualifying fifth, their entry finished in fourth place overall, seven laps down on winning team-mates Rinaldo Capello, Tom Kristensen and Allan McNish.

In the 2011 24 Hours of Le Mans, Rockenfeller was involved in a horrific accident while passing a slower GTE vehicle at 5:49 into the race.

Shortly after nightfall, he was involved in a violent crash at the kinks on the straight between Mulsanne Corner and Indianapolis after near contact with the number 71 car of Robert Kauffman.

In 2021, it was announced that Rockenfeller would depart from DTM following the season, whilst also parting ways with Audi at the end of the year.

He would go on to finish 8th in the points with podiums at Lausitzring, Circuit Zolder, the Nürburgring, and the Hockenheimring driving for Abt Sportsline.

[3] In 2023, Rockenfeller joined JDC–Miller MotorSports for the team's GTP program, driving alongside Tijmen van der Helm.