5. From the 727C to the 737C, yet victory is still out of reach
Several improvements were made to the 737C car that was prepared for the 1985 Le Mans. The wheelbase was extended by 80 mm for greater stability, the body rigidity was enhanced and the suspension reworked. The 13B rotary engine also featured new carburetors and other updates. The 737Cs qualified in 40th and 44th place, but incurred a string of problems in the actual race. These included engine trouble, a flat battery due to faulty wiring of the dynamo, and damaged bearings in the gearbox. Against the odds both cars completed the race, but only managed third in class (19th overall) and sixth in class (24th overall).