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POPSFuturistic Citroen DS "The Citroën DS was produced between 1955 and 1975. Citroën sold nearly 1.5 million D-series during its 20 years of production. The DS is well-known for its futuristic, aerodynamic body design, and for its innovative technology (including its hydropneumatic self-leveling suspension system)." - hence the "floating" advertisement idea.