Editing Rebadging (section)

=== GM X/H platform compacts ===
In response to the [[1973 oil crisis]], General Motors expanded fuel-efficient offerings beyond its Chevrolet division, reintroducing compact cars to its Buick, Oldsmobile, and Pontiac brands. Derived from the X-platform [[Chevrolet Chevy II / Nova|Chevrolet Nova]], the [[Pontiac Ventura]] was introduced for the 1971 model year, with the [[Buick Apollo]] and [[Oldsmobile Omega]] introduced for 1973. These four X-platform vehicles (also known as N-O-V-A from the first letters of their model names) were produced with identical bodies with divisional differences marked only with specific grille, lamp, and body trim variations.

To expand its footprint in the subcompact segment, the H-body Chevrolet Vega platform was used for the 1975 model year for newly styled variants sold as the [[Chevrolet Monza]], [[Buick Skyhawk]], and [[Oldsmobile Starfire]] followed by the 1976 [[Pontiac Sunbird]]. Similarly, to the X-body vehicles, the H-body subcompacts shared common bodies across all four divisions with differing grille, lamp, and body trim variations.

<gallery mode="packed" caption="1971–1979 GM X-body (compact)">
File:1978 Chevy Nova Custom 4-Door Sedan.jpg|1978 Chevrolet Nova
File:1973 Buick Apollo.jpg|1973 Buick Apollo
File:1979 Buick Skylark 07-27-2019.jpg|1979 Buick Skylark
File:1977 Oldsmobile Omega.jpg|1978 Oldsmobile Omega
File:1973 Pontiac Ventura (29964693242).jpg|1973 Pontiac Ventura
File:77 Pontiac Phoenix (7687875698).jpg|1977 Pontiac Phoenix
</gallery><gallery mode="packed" caption="1975–1980 GM H-body (subcompact)">
File:1978 Chevrolet Monza hatchback.jpg|1978 Chevrolet Monza (hatchback)
File:1977 Chevrolet Monza Towne Coupe.jpg|1977 Chevrolet Monza (coupe)
File:1975 Buick Skyhawk.jpg|1975 Buick Skyhawk
File:1977 Olds Starfire SX.jpg|1977 Oldsmobile Starfire
File:1978 Pontiac Sunbird Sport Coupe.jpg|1978 Pontiac Sunbird (coupe)
</gallery>