Pierre Raymond Sommer was a French racing driver. He raced both before and after WWII with some success, particularly in endurance racing. He won the 24 Hours of Le Mans endurance race in both 1932 and 1933, and although he did not reach the finishing line in any subsequent appearance at the Le Mans, he did lead each event until 1938. Sommer was also competitive at the highest level in Grand Prix motor racing, but did not win a race. He won the French Grand Prix in 1936, but the event that year was run as a sports car race.

The 1932 24 Hours of Le Mans was the 10th Grand Prix of Endurance that took place at the Circuit de la Sarthe on 18 and 19 June 1932. A significant year for the Automobile Club de l'Ouest (ACO) with the biggest changes to the circuit in the race's history. A new section bypassing Pontlieue suburb was built starting with a long right turn after the pits, going over a hill then down to the Esses, a left-right combination, before rejoining the Hunaudières straight at the new right-hand corner of Tertre Rouge. This shortened the track by almost 3 km down to 13.491 km (8.383 mi).