GM C platform

The General Motors C platform (commonly called C-body) was an automobile platform designation used for full sized luxury cars until 2005.

Rear wheel drive

GM C platform (RWD)

Manufacturer	General Motors
Production	1936–1984
Class	Full-size car

The rear-wheel drive C Platform designation had been introduced as early as 1936 and was used until 1984. From at least 1941, when the B-body followed suit in adopting the C-body's pioneering lower and wider runningboardless bodystyle, it may be viewed as a stretched version of the GM B platform. After 1984, the platform was renamed the GM D platform and continued in production to 1996.

This platform was the basis for the following vehicles:

Years	Model	Next platform
1936	Cadillac Series 80	-
1936–1937	Cadillac Series 70	-
1937–1938	Cadillac Series 65	-
1940–1964	Cadillac Series 62	-
1942–1976	Cadillac Sixty Special (stretched for most of its existence)	FWD C Platform
1948–1950	Cadillac Series 61	-
1959–1966	Cadillac Eldorado	GM E platform
1959–1984	Cadillac De Ville	FWD C Platform
1965–1976	Cadillac Calais	-
1977–1984	Cadillac Fleetwood Brougham	GM D platform
1940	LaSalle Series 52	-
1936–1958	Buick Roadmaster	GM B platform
1940–1958	Buick Super	-
1958	Buick Limited	-
1959–1984	Buick Electra	FWD C Platform
1971-1976	Buick Estate	GM B platform
1940–1984	Oldsmobile 90, 96 and 98	FWD C Platform
1971-1976	Oldsmobile Custom Cruiser	GM B platform
1940–1941	Pontiac Series 24/29 Torpedo	-
1971-1976	full-sized Pontiac Safari, and Pontiac Grand Safari	GM B platform
1971-1976	Chevrolet Townsman/Brookwood/Kingswood/Kingswood Estate	GM B platform

Front wheel drive

GM C platform (FWD)

Manufacturer	General Motors
Also called	C-Body
Production	1985–1996
Successor	GM G platform
Class	Full-size car
Vehicles	Buick Electra Buick Park Avenue Cadillac De Ville Cadillac Fleetwood Cadillac Series 75 Cadillac Sixty Special Oldsmobile 98
Related	GM G platform (FWD) GM H platform (FWD) GM K platform (FWD)

From 1985 onwards, the C-body designation was used for front-wheel drive luxury cars. The platform was similar to the H platform, with both sharing the same 110.8 in wheelbase. Most C-body vehicles were replaced with cars on the related G, H, and K platform designations.

The Cadillac Series 75 briefly made its return on this platform, stretched by 23.6" to a wheelbase of 134.4".

This platform was the basis for the following vehicles:

Years	Model	Next platform
1985–1987	Cadillac Series 75	-
1985–1992	Cadillac Fleetwood	GM D platform
1985–1993	Cadillac De Ville	GM K platform (FWD)
1987–1993	Cadillac Sixty Special	-
1985–1990	Buick Electra	-
1991–1996	Buick Park Avenue	GM G platform (FWD)
1985–1996	Oldsmobile 98	-