The company was founded in 1905 by
Louis Delâge, who borrowed
Fr 35,000, giving up a salary of F 600 a month to do so. Its first location was on the Rue Cormeilles in
Levallois-Perret. The company at first had just two lathes and three employees, one of them
Peugeot's former chief designer. was wrecked in the rain on the fifth; nevertheless, Ménard, the other works driver, came second in the event, behind a Sizaire-Naudin. (built by Nemorin Causan) in the hands of Delage dealer Albert Guyot. Guyot won at an average , not needing to stop for fuel. All three Delages finished this time, Thomas the quickest of the two-cylinder cars, while the team also took home the regularity prize. These good results contributed to total sales exceeding 300 cars for the year. The CO plans had been drawn up during the conflict; this was the first passenger car with front brakes. It was joined by the
DO with a 3-liter four. The 1920s were really the first "Golden Age" of Delage. The most famous were the DE and DI: 4 cylinders of about 2 liters and 11 hp. Delage also attempted to compete with
Hispano-Suiza, with the GL of 30 hp and 5954 cc, with some success. After that came a new generation of six-cylinder cars, like the MD (3174 cc) and DR (2516 cc), the best-selling vehicle in the history of the brand, designed by engineer Gaultier. Both the CO and DO were replaced in 1922. A 1925 car had a () six, again using the GL block, with four valves per cylinder and twin overhead cams. Driven by Divo, it broke the Mont Ventoux course record in its debut. The DIS became the Series 6 in 1927, switching to coil ignition and water pump. In 1926, Delage introduced the
DM, with a () six, which made it emblematic of the era for the marque. The high-performance DMS had hotter cam, twin valve springs, and other improvements. A
DR, with a choice of 2.2- and 2.5-liter sidevalve engines, also briefly appeared. ==Competition==