Citroën is a major French automobile manufacturer, part of the PSA Peugeot Citroën group since 1976. It was founded in 1919 by French industrialist André-Gustave Citroën (1878–1935). In 1934, Citroën developed 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. In 1954, Citroën produced the world's first hydropneumatic self-levelling suspension system, then in 1955 the revolutionary DS, the first mass production car with modern disc brakes. In 1967, Citroën introduced swiveling headlights in several models, allowing for greater visibility on winding roads. Citroën cars have received various international and national-level awards, including three European Car of the Year. Citroën has a successful history in motorsport, and is the only automobile manufacturer to have won three different official championships from the International Automobile Federation: the World Rally Raid Championship (five times), the World Rally Championship (eight times), and the World Touring Car Championship.