This document contains summaries of four French automobile manufacturers: - Citroën was founded in 1919 by Andre Citroën and is known for innovative technologies that have revolutionized the industry. - Renault was founded by Fernand and Marcel Renault and is now the third largest automaker through its alliance with Nissan. - Peugeot is a family-owned company founded in 1810 that remains a French automaker. - Bugatti, founded in 1909 by Ettore Bugatti, is located in Alsace and produces luxury sports cars, and is now owned by Volkswagen.