Citroën is a French automobile manufacturer, founded in 1919 by André Citroën. Since 1976 it has been part of PSA Peugeot Citroën, and its headquarters is on rue Fructidor, Paris.

Originally a mass-market car maker with relatively straightforward designs, Citroën shocked the world in 1934 with the innovative Traction Avant, the world's first mass-production front wheel drive car (1934-56). Significant models include the H Van (1947-81, "HY"), the 2CV (1948-90, "The Duck"), the DS (1955-1975, "Goddess") and the CX (1974-91).

Source: Wikipedia