24 Hours of Le Mans
Udo Schütz / Piet de Klerk, Porsche System Engineering, Porsche 906/6 Carrera 6 Langheck, leads Hans Herrmann / Herbert Linge, Porsche System Engineering, Porsche 906/6 Carrera 6 Langheck, and Claude Ballot-Lèna / Jean-Louis Marnat, Jean Louis Marnat & Cie, Marcos Mini GT 2+2 - BMC.