Time for a Peugeot 501!
Except they didn’t do one.
Time for a Fiat 501, or indeed several because coachbuilders.
The green one complete with genuine rust which you don’t often see on a carefully preserved car is in Sweden and the mysterious sign above it reads “no winter maintenance of steps”, so they don’t go salting or scraping off the ice that may build up in the chilly Nordic winter. Yellow one’s in Sweden as well, now that I peer at the sign saying “motormuseet”.
Sporting ones had all of 30 bhp. Exciting times to be had.