At the 1924 Paris Motor Show, Citroën presents the All-Steel B10, a car that revolutionises the industrial manufacture of bodywork. The production process was developed by the American company Budd, but US carmakers are wary of adopting it because they consider it to be too modern. Car bodies were previously built of wood and the metal body parts nailed on.

From now on, as a result of the innovation introduced by André Citroën, they will be welded to a metal structure.Over the years, the innovative designs and the original features of Citroën cars set the example for others to follow. The Marque brings out the B12, the B14, the C4 and the C6 with four- and six-cylinder engines.