In 1903, Renault began to manufacture its own engines; until then it had purchased them from De Dion-Bouton. The first major volume sale came in 1905 when Société des Automobiles de Place bought Renault AG1 cars to establish a fleet of taxis. These vehicles were later used by the French military to transport troops during World War I which earned them the nickname "Taxi de la Marne." By 1907, a significant percentage of London and Paris taxis had been built by Renault. Renault was also the best-selling foreign brand in New York in 1907 and 1908. In 1908 the company produced 3,575 units, becoming the country's largest car manufacturer.