It was similar to the GM B platform in its rear-wheel drive era (vehicles produced were upscale luxury cars as opposed to the stripped-down cars usually common with the GM B platform), and the GM H platform in front-wheel drive, with both the H-body and the C-body using the same 110.8 in wheelbase. Most C-body vehicles were moved to the GM G platform or GM K platform in the mid-1990s.
The C-body was rear-wheel drive until 1984; from 1985 onwards, the C-body was front-wheel drive. The former rear-wheel-drive C-body was continued as "D-body" from 1985 to 1996 under the 1985-86 Cadillac Fleetwood Brougham, 1987-92 Cadillac Brougham, and 1993-96 Cadillac Fleetwood.
This platform was the basis for the following vehicles:
|1959-1984||Cadillac Calais, Series 62, DeVille and Fleetwood|
|1959-1966||Cadillac Eldorado||GM E platform|
|1985-1993||Cadillac Sedan de Ville||GM K platform|
|1985-1992||Cadillac Fleetwood||GM D platform|
|1985-1993||Cadillac Coupe de Ville||GM K platform|
|1991-1996||Buick Park Avenue||GM G platform|
|1993||Cadillac Sixty Special|