Virgil Exners finned "forward look" designs of 56-57 are what put him, and Chrysler, on the map as style inovators. GM & Ford were put in a catchup mode. (Chevrolet was caught with their pants down and the 57 design was a revamp of the 55-56 body. People at Chevy lost their jobs over that. It's ironic that the 57 chevy went on to become the cultural icon that it is).
By 61 Exners designs had become exotic and outlandish beyond the public acceptance and Virgil was sent packing.... To make matters worse, he was replaced by Fords head designer.