24 Hours of Le Mans: Jean Ragnotti / Bernard Darniche, Jean Rondeau, Rondeau M379 - Ford Cosworth DFV leads Manfred Schurti / Hans Heyer, Gelo Sportswear International, Porsche 935/77A and Jean-Pierre Delaunay / Cyril Grandet / Preston Henn, North American Racing Team, Ferrari 512 BB
Jean Ragnotti / Bernard Darniche, Jean Rondeau, Rondeau M379 - Ford Cosworth DFV leads Manfred Schurti / Hans Heyer, Gelo Sportswear International, Porsche 935/77A and Jean-Pierre Delaunay / Cyril Grandet / Preston Henn, North American Racing Team, Ferrari 512 BB