From the Batmobil here >>18928 - which proved to be a failure as an artillery truck - they developed the 1939M Csaba armoured car/recon vehicle, I posted the later version of it here: >>18749
It was a neat little car and was used in the fights but needed an upgrade soon. By 1943 the plans were ready, they named the six-wheeled replacement Hunor. The lack of producing capacity meant another unrealized project. Just after the war the plans got to Alvis via Straussler, where some (few?, many?) points of the concept were used in the making of the Saladin and later the Saracen.