The P-107 was introduced in 1934 and was a more powerful successor to the Citroen-Kegresse P17. However, before full production could commence, Citroen went into bankruptcy. Unic obtained the license for the Kegresse patent and started production of the P-107. Following the fall of France in 1940, the Germans used captured P-107 as artillery tractors, pioneer wagons and aviation service vehicles.