and, meant to mention: It is one of the first cars I learned how to drive in. Push button transmission and all. Also the first time I heard my dad say a four letter word when he accidently bumped an item stored overhead and it went straight through the back glass. I doubt you can even get a back glass for it anymore.
GM Design was doing the XS and the Chey B body coupe as how to use the new bent glass technology. It fit with the overall design trend of sheer design and a stiff truncation of the upper. It was just a design idiom of the time.
Who writes these things? Apparently someone whose knowledge of GM cars is pretty shallow and begins with 1963. Others have pointed out the ‘61-‘62 Impala bubbletops. The 2nd from the bottom rung ‘62-‘65 Chevy II hardtops like my ‘64 Nova SS had complex, compound-curved back glass that was dramatic and graceful yet muscular. Both were more attractive than anything else on this list other than the Stingray and Riv.