Automotive assembly plants can appear as different as the cars they produce, but the fundamentals are basically the same. Parts go in, they're put together, and cars roll out. And that, boys and girls, are where cars come from.
This amusing video clip, however, suggests that Citroën went about making its prolific and iconic 2CV in a rather different way. Beyond that we'll say no more, preferring to let the sex-ed video below speak for itself. It's good for a laugh or two. (We'd say it's farily safe for work, unless you happen to work for Citroën.)