@Rene Some more stuff on disabled vehicles. I’ve put it here to avoid cluttering up the “Number on scheme” thread.
This neat little fellow is the SMZ S3A car for the disabled produced in the USSR between 1958 and 1970. Given free to drivers it had a 346cc two-stroke single giving a max speed of 25mph. Many thousands were made. The USSR seems to have been very active in providing such vehicles. Much more modern ones exist but look extremely boring compared to this one. Stick a decent engine in it and it would become a cult “must-have”.
The Czechs also were active in the field. This one, a Velorex from 1945, had bodywork made from leather-cloth (post-war material shortages) and a Jawa 250cc two-stroke 8bhp single. Top speed? Very little. If wanted to spruce it up, I presume boot polish had to be applied and buffed up!
Asking price today can be over £20K! ‘?