In some oy my classic car magazines I've read a story about the restoration of a car with a similar history, a Horch or Maybach, converted in the late 40ies to a tow-truck.

When my Imageshack-account may be repaired, I will show you a photo of such a car, some post-WWII-car, converted into a mobile bandsaw.
I saw it here: https://sinsheim.technik-museum.de/en/

Such conversion weren't really rare over here after WWII. New cars and other vehicles weren't available for everyone and if yes, only by coupons. Even for fuel, tires and spare parts you needed coupons. So when you wanted to have a car or truck, but you haven't a priority permission by the Allied Occupation Forces, you have to dig for used stuff.

And there was no need for representative, luxourious premium cars in those times (the best cars were commandeered by the Allied soldiers anyways).
But those premium cars had strong engines and a very stabile chassis - so perfect for the conversion into a truck or tractor.