As MUCH as I love convertibles, I say "no" to this one. Part of Riviera's appeal & exclusivity (not unlike '56 & '57 Continentals ) is that it was manufactured in just one body style-and-much of that style (angular cuts & edges ) was incorporated into the roof.
However, it's interesting to see this "inward X-bow" convertible frame rail design so long before GM actually started using it on their last-gen convertible in the mis-1970's.
It should have been done. The car with the top up looks a slight bit out of proportion and timid. But down, it positively looks radiant!
I think most convertibles over the decades looked "a slight bit out of proportion". In my opinion more often than not, it's the "top" of a car that can make or break the styling of it. Convertibles take that styling feature (look) away. As an example, I'd offer up the '57 Oldsmobile Hardtop with its "rear split window". It's that window styling that adds (at least to my eyes) the unique styling to the car. But as a convertible, that unique styling is absent.
