There are lots of interesting French car links on YouTube - well, Citroen ones anyway.
This is a nice and illustrative one in two very long parts.
Part 1
Takes a while to get around to hydropneumatic. Stickstoff - wonderful word, took me ages to work out what it was years ago when buying photoprocessing machinery from Germany
And a nice C6 video.
The girl looks like the Chinese lady I spent a couple of hours with in Terminal 5. Got so caught up with her we both almost missed our flights