Inselaffe:
dieseldave:
I’m fairly sure I’ve got this right, but let’s see if Inselaffe sees this and comments, because his knowledge is more current than mine.Crazy as it seems, you’re OK with a 7,5t truck but a van pulling a trailer is a no no on Sundays. However, caravans, or trailers carrying equipment for sport or recreational purposes pulled by a vehicle with up to 3.5t gross weight are exempt from the Sunday driving ban. What actually defines “sport and recreational purposes” is open to debate and could lead to an interesting roadside conversation with the Polizei…
Does seem strange. 
Do they specify that the sports and recreational purpose is for non commercial use?
If they don’t specify it, then I’m sure a racing car and tools could be considered Sports use without to much further explanation. 
Anybody know if it works the same in Austria?