ORIGINAL: Hanny
ORIGINAL: MechFO
Unfortunately it needs a registration.
Feel free to copy paste or to show a reference to f.e. the 6.5 ton Opel Blitz. Showing how the rather classic 3 ton Opel Blitz weighed a negative 3.3 tons when empty would also work, I guess.
JSTOR is free to register. Feel free to pass further comment on something you clearly have not read, or understood.
You are earnestly asserting that the very basic and fundamental concepts of empty weight, carry capacity and total weight of a truck were somehow mixed up and then wrongly applied by the German army.
The assertion is both ridiculous and wrong. If you understood and are correctly representing the article, the good professor mixed things up in translation, had a bad day or maybe the deadline was a bit too tight. Either way that gem has been left buried in that journal for good reason.
Not treating every unreviewed, or even reviewed, article as the gospel truth on a particular subject matter is a good practice in general, the more outlandish the claim, the more caution required.