In the comments on my ’69 Grand Prix post yesterday, one of our commenters, dejal, mentioned that he wasn’t sure if he ever saw one of these sans vinyl top. I had a dim memory of spying one, and after work today dived into ‘The Vault’, to check.

In 1978, the Pontiac Grand Prix was downsized, along with its corporate cousins, the Oldsmobile Cutlass Supreme and the Chevrolet Monte Carlo. And the Buick Regal, of course, which I covered previously here at RG. Phase II of General Motors’ downsizing had begun. The Colonnade midsizers of 1973-77 were but a memory, and Bill Mitchell’s…