Buick's Riviera

When I think of the "Mad Men" or Camelot era of the early 1960's several cars come to mind.  First and foremost are the Jaguar E-Type and Corvette Stingray, two cars that need no introduction.  

The other car is a Buick.

The Buick Riviera was originally styled by Bill Mitchell, the designer who also created the Corvette Stingray and oversaw most of GM's design work of that era.

The 1963 to 1965 model is a high watermark of automotive design.  It's clean, well-proportioned, and projects an aura of confidence.