Comment by gorgoiler

It was less about form and more about function.

I would explain in more detail but why listen to me when you can have Tintin and Captain Haddock walk you through features such as the dual purpose tyre-iron / starter-crank?:

https://www.ebay.com/itm/266233955544

One of their best innovations was the four wheel drive version that did away with front/rear transmission by having separate front/rear engines!

https://citroenvie.com/1964-citroen-2cv-sahara-a-love-story/

(Not my site, but I have an almost identical set of photos from the same auction in Berlin. What a treat!)