The Simca Huit, which was a manufacture under license of the Italian Fiat Balilla 1100, was manufactured commencing in April 1938. The illustrated vehicle is a Simca Huit with pennant of a motorised artillery unit.
Obviously, Simca made delivery vans based on the Simca Huit. The indication FP could stand for field post (Feldpost).
An additional Simca Huit Cammionette used by a unit of the Luftwaffe. The vehicle had a payload of 500 kg.