This car is easily one of my all time favorites! The unique 1963 Buick Riviera Silver Arrow Concept Car!!!
According to the gmheritagecenter.com, the 1963 Buick Riviera Silver Arrow I Buick concept car was a production Riviera coupe specially customized by GM styling head William L. Mitchell. The roof was lowered and the front fenders lengthened several inches housing the concealed headlights.