Citroën is a major French automobile manufacturer, part of the PSA Peugeot Citroën group since 1976.Founded in 1919 by French industrialist André-Gustave Citroën (1878–1935), Citroën was the first mass-production car company outside the USA and pioneered the modern concept of creating a sales and services network that complements the motor car. Within eight years Citroën had become Europe\'s largest car manufacturer and the 4th largest in the world.Citroën earned a reputation for innovation and revolutionary engineering, which is reflected in the company\'s slogan \"Créative Technologie\". Its history of innovation began with its founding, when André-Gustave Citroën introduced the first industrial mass production of vehicles outside the United States, a technique he developed while mass-producing armaments for the French military in World War I. In 1924, Citroën produced Europe’s first all-steel-bodied car, the B10. In 1934, Citroën secured its reputation for innovation with the Traction Avant, not only the world\'s first mass-produced front-wheel drive car, but also one of the first cars to feature a unitary-type body, with no chassis frame holding the mechanical components.