In my late teens, I was driving my worn-out Mk1 Midget at about 70mph on a local dual carriageway, when I was not so slowly overhauled by a Fiat 500.
I was talking to my late Dad about it and he said ah, that will be such-and-such he has one that was made in Austria with a Motor Bike engine,
It was only later that I learned about the Steyr Puch version.