Tank
you all for paying attention!
I forgot: As we had to record everything concerning these tanks: They tend to drink a bit: On the road 165 Liter per 100 km; in heavy duty up to 500 Liter per
hour. But you could put almost any liquid into it...

I am sure I have a picture where the Leopard stands on top of a little "hill" on the 4th pair of wheels only, but in balance...
...like the next step of this: