Imagine this at a free camp:

https://www.realestate.com.au/lifestyle/check-out-this-self-sufficient-rotating-caravan/

A search of the Internet reveals that there are a number of YouTube videos about this type of 'caravan?' - just search for 'sCarabane.'

Although it appears to have been around for some time this is the first time I have come across it.

Murray

-- Edit