The original two-cylinder engine had the merit of being very compact, and in order to accommodate the four-cylinder unit from Peugeot the nose of the van had to be extended, which compromised the clean frontal design of the original van and gave rise to frequent use of the «Nez de cochon» (“pig nose”) soubriquet.

1960 also saw a rearrangement of the exterior lights with the fitting of flashing direction indicators front and back.

Further changes during the final five years were minor in nature, one of the more noteworthy being a small reduction, in 1963, of the number of bars on the front grill.

A range of body types existed including those of a basic panel van, a minibus, and ambulance and horse-box.

[5] The D4B was withdrawn in 1965 to be replaced by the Peugeot J7 A D4 in police livery featured memorably in the original Pink Panther film when Inspector Clouseau was driven away in one after being caught in possession of the eponymous diamond.