Xue Sheng
All weight is underside
Did not see the inside, it was going down the road at 50mph. But I was rather shocked to see one on the road herea Deux Cheveaux? Kinda like a Superman Bizarro version of an old VW Bug! I visited France once when I was a kid, around '69, and these were common. They had yellow headlights and seats that looked like lawn chairs ...you know a steel tub frame with a cloth over straps or springs. I imagine that's been changed on any that were imported and made street-legal here in the US.
The original seats:
View attachment 31240