10. 1938 Hispano-Suiza H6C Dubonnet Xenia Streamliner
This might be the first case of what is now an epidemic of weird-ass doors on a one-off car. Today, these make us think of minivans, but, at the time, they were futuristic. The idea of aerodynamics was a relatively new concept that was featured on this car, having had its monkey-touches-monolith moment with the Chrysler Airflow just four years prior. Saoutchik even worked with aeronautical engineer Jean Andreau too make the Dubonnet Xenia Streamliner slip through the air.
Andre Dubonnet, of cognac and aperitif fame, commissioned this car to showcase his recent suspension breakthroughs.