Better than this!
I probably really don’t want to know the answer to this question, but, is that really the gasoline filler cap in the door???
Well, while in HS I learned to drive in my dad's 403 which looked like a sort of 1950's American sedan at a time when Henry J's and Studebaker's and Fords were still on the road. It wasn't too bad until I was asked "what make is that?". I'd sort of mumble and point to the speedometer and let them read the name out loud. Nine times out of ten they said "Jaguar, huh". The printed word was Jaeger, the instrument mfr. The guy taking German blew my cover, damn him.
I'm guessing the 404 had the same weird three lug nut arrangement on the wheels as the 403, Citroen CV, and Renaults. Must have been French government standards mandate.
Though being French, maybe they taxed lug nuts the same way they taxed horse power, the more lug nuts the more tax.