As much as I like to beat up the French ( and who doesn't?) they have occasionally done some amazing things. One of them is the Citroen DS. Now, you have to remember that this car came out in the mid 50's and still manages to look somewhat modern today. In fact, the Honda Insight bears more than a passing resemblance to this car, and it is the most aerodynamic car ever sold in the US. Some of the DS's innovations include: Front Wheel drive/mid engine layout ( the only company I know of ever to use it!), hydropneumatic suspension with adjustable ride height, .38 coefficient of drag (G body is .45), a fiberglass roof to lower the center of gravity, crumple zones, first car to have standard front disc brakes, headlights that turned to see around corners ( like a Tucker, or newer BMW),etc. Now this is not to say that Citroen was the only manufacturer to make an aerodynamically clean car in the 1950's. Studebaker's Starlight Coupe was also exceptionally clean. However, the DS was a far more innovative and quirky design than the Stude.
http://en.wikipedia.org/wiki/Citroën_DS
Picture taken from: http://www.dsworldltd.com/about_us.html
http://en.wikipedia.org/wiki/Citroën_DS
Picture taken from: http://www.dsworldltd.com/about_us.html