The claim to superiority to British design had been based on the use of a welded monocoque construction combined with a consistent use of the sloped armour principle, which was predicted to lead to a much improved weight efficiency. It would therefore not use an existing truck chassis as was common for contemporary armoured cars. However, DAF in the same period did design such more conventional armoured cars, including two proposals for a Ford truck modified into an armed command car, and equipped with the Trado IV-suspension, a Trado system optimised for lighter vehicles. Also an extremely flat, eighty centimetres high, one-man armoured car was designed, armed with a single machine-gun in the hull, on the lines of certain British tankette-types from the 1920s.