This is the ICM 35401 kit in 1/35 scale, of the ‘German Light Truck, Opel Blitz 2,5 32’.
Only 698 exemplars of the one and a half ton model of the new Opel Blitz were made from December 1930 to June 1931.
The vehicle was propelled by a 40 HP four-cylinder engine with a cylinder capacity of 2594 ccm.
Some vehicles of this type were procured by the Reichswehr with Krankenkraftwagen (Kfz.31) – ambulance – car bodies. These were taken over by the Wehrmacht, later.
Source: Kfz der Whermacht website