Rondeau and Jean-Pierre Jaussaud took victory in the 1980 24 Hours of Le Mans after fighting hard against the Porsche 908/80 of Jacky Ickx and Reinhold Joest.
Rondeau finished second in the 1984 24 Hours of Le Mans as part of the American Preston Henn's race team, running with John Paul, Jr. in a Porsche 956B.