[1] As of 2009 Roger Penske lost sponsorship for the sports car program, and Dumas and Penske regular Timo Bernhard race on loan to the Audi Sport Team Joest for the 24 Hours of Le Mans, finishing 17 overall and 13 in class in the 2009 24 Hours of Le Mans.

Dumas, together with Timo Bernhard and Mike Rockenfeller won the 2010 24 Hours of Le Mans in an Audi R15 TDI plus.

[3] Dumas also won with partner Klaus Graf in the CytoSport Porsche RS Spyder at the ALMS event at Mosport.

[5] In 2014, Dumas won the Pikes Peak International Hill Climb in a Norma M20 "RD Limited" prototype developed specifically for the event.

[9] In 2019, Dumas set a new lap record for an electric vehicle at the Nürburgring Nordschleife, completing the circuit in 6:05.336 driving the Volkswagen ID R. The same year, he set a lap record at the Goodwood Festival of Speed, completing the hill climb in 0:39.90 driving the Volkswagen I.D.

In 2021, Dumas took another Time Attack class win at the Pikes Peak International Hill Climb, with the Porsche 911 GT2 RS Clubsport of Champion Racing.

In December, 2023, Dumas set the world record for land vehicle altitude, driving a Porsche 911 to the peak of the west ridge of the Ojos del Salado volcano in Chile, 6,734 metres above sea level.