My dad had a citroen CX in the late '70's, my first car was a citroen GS. al with a hydropneumatic system.
in the '90's they lost most the special "citroen" features and some of the technical advanced stuff.
they adjust their smaller an middel range cars to "german" standards so the could compete with volkswagen golf and opel astra. these are still the two bestselling cars in europe. (and stolen

) even the softness of the hydropneumatic system was getting stiffer with each new model.
but the latest designs ar getting those citro?n features back.
the tatest finishing touch are the inverse curved back windows on C5 an C6. something that was special on lot of their '70' models.
especialy the "big" models (C4 grand, C5, C6 and C8) are pretty luxury.
although only the C5 an C6 have the luxery drive that comes with the hydropneumatic shock absorbers.
the system leves the car computer controlled. ther are "active" version of this system that automaticly lower the car 3/4" when driving 70 Mph on the highway, or ingrease it automaticly on a rough road....
did you know that the hydropneumatic system is also used in expensive cars like Rolce Royce. Even Mclaeren uses it in there Formula 1 racing cars....
sounds like an ad for Citro?n, but that isn't. I'm just a enthusiastic "Citroville"