The Traction Avant is a revolutionary automobile produced by Citroën from 1934 to 1957. It was one of the first mass-produced cars to feature front-wheel drive and a unitary body, which combined the chassis and body into a single structure. This design improved handling and stability, making it a significant advancement in automotive engineering. The Traction Avant was known for its sleek, aerodynamic shape and innovative technology, including hydraulic brakes and independent suspension. It became popular in Europe and was used by various notable figures, including French resistance fighters during World War II. Its legacy continues to influence modern car design.