The 1912 Grand Prix de l’Automobile Club de France was held on the Dieppe racetrack. It ran over two days, June 25 and 26 1912 and in total some 47 (!) contestants participated. It was the first Grand Prix after a period of three abstination on racing. The winner was Boillot in the Peugeot L76. It was the first of many more successes of this car, which engine was to become the hallmark for almost all racing engines in those days. It’s main characteristics were a hemisperical combustion chamber, four valves per cylinder actuated by twin overhead camshafts. The Peugeot with less than 7 liters engine capacity beat the Fiat that had twice that capacity. The lighter class of voiturettes ran for the Coupe de l’Auto and the first three cars finishing in this class were Sunbeams. Technically interesting was release of detachable wheels and with it the application of steel wheels of the Rudge-Withworth type, designated in several articles by R.W.