The Volvo passenger car models of the latter half of the 1930s were the 51-56 types. All the models had the same basic body style. The differences lay in certain exterior changes and levels of equipment. Many cars saw wartime service running on producer gas with an output of a mere 50 bhp.
In 1936-7, the PV51 (standard) and the PV52 (de luxe) cars were introduced. For the PV53-56 models, the appearance was modified with a new hood line and a V-shaped grille. The 55 and 56 were the de luxe versions and the 53/54 were the standard models. The 55/56 featured folding front seats. The pointed nose section was carried over to the successor, the PV60.
The PV51 and the PV57 were sold as rolling chassis with bodywork according to customer requirements.