I know that my question is not related to toys, but I found interesting truck which could be easy to build as a scale model scratch and I know that among collectors there are also truck experts. Dont you, guys, know some details about the truck shown below? Anything would be appreciated. Thanks in advance, Jan Mostek, Prague, Czech republic.

Not one I've seen before. Looks like it was based on the 3000 cab over series. Interesting design. Filling the gap between the cab and trailer would have improved fuel mileage, and makes for a large sleeping area behind the seats. That was a huge sleeper for the time period. They sure made great use of available space.

Yes, oldtruck56, you are right, the truck is built on White 3000 COE, the front grill is taken over this truck, only the cab seems to me higher than on original, and of course the cab and wb is longer. My idea is to use the 1/24 White  as a reference for the chassis and possibly copy smaller parts in resin (grill, wheels, maybe also springs or axle)

Would like to have this in diecast form.

Looks kind of like the Dinky Horse box.

It is not a horse-box-like van, it is semitrailer with tractor, with minimalised gaps between cab and semitrailer body.