Well i have an old book for volkswagen from the late 40s. They gave tips how to mix a lot of stuff trough your petrol to save money. Ethanol was one of the less harmfull. Some of that would be an ecological crime today ;-).
I ran into to this one, anyone seen this before? Lenght about 6 cm cast metal probably aluminium. Nice detailed for such a small model. No makers marks.
Did see this ad on Ebay germany maybe interesting for someone.
https://www.ebay.de/itm/4-Rader-Beutefahrzeug-US-Army-War-Department-Wehrmacht-2-WK/223526884368?hash=item340b3d9410:g:T6sAAOSwyZhcpSRE