When I was at school in the late 50s one of the teachers had an Isetta "bubble car" (that's what we called them) and we all used to watch as he got in it as he was almost 7ft tall
Also in my village there was a guy that had a Messerschmitt (the one with tandem seats) and we used to pick it up and put in in the village hall doorway sideways with about an inch to spare.
We never knew how he used to get it out as it took four of us to put it in there !