New age travelling

This "caravan" hails from Switzerland. Looks like a home-made ensemble. I don't know any technical jargon, but it is a large truck base with a tin shed on top, air vents on the side and sky-light windows. It has two or three bikes on a carrier on the back. Looks like E and J would like to travel around in it.

Hope the weather improves for the family who own it.