In french, it is pronounced "2 chevaux", as in "2 horses" (horsepower), abbreviated "deuche", or "dodoche"

In Slovenia it's called "spaček" - a diminutive masculine form of "spaka", i.e. "monstrosity".

I heard a joke in Uruguay that they were called "pedo" (fart) because only the owner could like it.

I've heard them referred to as the "tin snail" in the UK, but I'm not sure how common that is. I had one of the last ones, in the early 1990s; it was a bit of a pain to maintain.

in French, "la Deudeuche" [de-duhsh], for a very roughly approximated anglicised pronunciation ([dø.døʃ] is the proper IPA, but I feel like it wouldn't resonate with everyone... at least I would have no idea).

short for "deux chevaux", i.e. ... 2CV.

Same here in NL 'de eend'. There's a whole raft of wordplay jokes on that name.

As for the suspension, it's the only car that you can scrape the mirrors with while it's still on all four wheels ;)