1977 was the final model year for the pre-downsized Oldsmobile Cutlass Supreme. It was also the final year for the fourth generation of the Cutlass nameplate and the third generation of the Supreme trim level.
This generation of GM midsize cars was still rolling on a 112" wheelbase, like their '68-'72 predecessors, but had replaced the graceful pillarless hardtop roofline with what the manufacturer termed a "Colonnade" roof which, depending on how you looked at it, featured either a B-pillar with a small side window abaft it, or else a thick C-pillar with a small opera window-type porthole cut in it. This was due to the same worries about rollover standards that saw the disappearance of convertibles from Detroit.
The Brougham trim level was added to the Cutlass Supreme coupe line for the '76 model year and featured a 60-40 split bench front seat like that found in the larger and more luxurious Olds models, complete with pillowy soft "loose cushion" velour upholstering. It also featured a half-vinyl roof and the debut of rectangular headlamps on a car in the Cutlass line.
The '77 model year saw the 455 Rocket V-8 disappear from the catalog, replaced with a new 403 Rocket V-8, which had a four-barrel carburetor and made 185 SAE net horsepower, only a 5-horse reduction from the 455. The base motor in the Cutlass Supreme Brougham coupe was the 260 cubic inch Olds V-8. This was an economy-oriented motor originally developed for the 1975 Olds Starfire compact, had a two-barrel carb and was rated at 110hp. The final of the trifecta of engines available was the classic four-barrel 350 Rocket V-8, putting out 170 horses. The only transmission was the 3-speed Turbo Hydra-matic.
The White 1977 Cutlass Supreme Brougham coupe with optional styled steel wheels in the photo was snapped in June of 2020 using a Nikon D700 and a 24-85mm f/2.8-4D zoom lens.
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