Once again there was a small turnout for the S2.0 class. One of the Chevrons featured the first all-female driver line-up since 1951, led by Belgian Christine Beckers. After getting frustrated with the unreliability of the 2-litre racing engines, French privateer Fred Stalder set up his own company, Société Racing Organisation Course (ROC) to build engines. His first engine, designed by Mario Illien and based on a Chrysler-Simca block, could develop 280 bhp and was put into his Lola T292 as well as a French GRAC car.