So no not only in north america, actually sedan refers to a car in quite a few other languages aswell... Nearly all of europe for instance ( the that seem to use another word are germany, italy, serbia, slovakia, romania, albanian and greece, so the other 40 countries all say sedan for sedan...)
So your claim is not only false, but wayyy off, like it is hard to find a language that does nót have the meaning of type of automobile for sedan. How to say sedan in other languages
Also couldn't think of anything other than Jacobite for the Whig one, I blame that on my currently reading Kidnapped.
I enjoyed the quiz despite my malfunctioning brain.
Satire yea I like that one :)