the three works Porsches were ahead of the two Wyer Fords and also running in the top-3 of the Index of Performance. Bonnier and Gregory were having a good run in the Lola, running sixth, until overheating issues at 11pm forced a 3-hour pitstop to change heads and gaskets. 'Taf' Gosselin got it wrong approaching the Ford chicane, going straight on and crashing although the driver escaped without injury. The big Alpines had been plagued by engine issues, and just after midnight the last one suffered head gasket failure. At the 2am halfway mark Elford/Attwood had done 192 laps, four ahead of Schütz/Mitter and Lins/Kauhsen (187), then back to the Fords (both 184 laps) and the Vaccarella/Guichet Matra (183). Disaster struck the Porsches at 2.45am when the team cars of Schütz (running 3rd) and Larrousse (now 8th) collided at the Mulsanne kink. Schütz's car rolled, burst into flames and almost broke in half. However the driver escaped uninjured. Larrousse's car made it to the pits with bodywork damage and was quickly repaired. Morning Dawn saw the 917 of Elford/Attwood driving within itself and still leading the 908 of Lins/Kauhsen. The Wyer Fords were 3rd and 4th with the Herrmann/Larrousse Porsche motoring back through the field, up to 5th. The remaining 312P Ferrari was in 8th with ongoing oil-leak issues splitting the three remaining Matras until it finally retired just after 5am. Through the night the Matras had had their problems: Galli spent an hour getting new fuel pumps fitted and Courage had a broken headlight then clipped a Porsche 911 on Mulsanne, getting bodywork damage. But come the daylight he and Beltoise pushed hard to close in on the Fords. At 6am, as a heavy mist came down over the circuit the leaders had a 5-lap lead and there were only 19 cars still running. The 1.5L Alpine, of Killy/Wollek, had been running very quickly and steadily moving up the order to as high as 11th leading the medium-engined cars and the Thermal Efficiency Index. But soon after 8am it was retired with broken suspension much to the disappointment of the French crowd. Then around 10.15am, with barely 3 hours left to run, the two leading Porsches both came in with unscheduled pitstops. The mechanics examined them but to no avail – the Lins/Kauhsen car stopped on Mulsanne with a broken clutch. The 917 limped on for another half-hour before