Cadillac	8	From 1902	Detroit, Michigan, United States
	Carbodies	1	1982-1985	Coventry, England, United Kingdom
	Carpenter	1	1922-2001	Mitchell, Indiana, United States
	Citroën	18	From 1919	Paris, Île-de-France, France
	Chana	1	From 1999	Chongqing, Yuzhong, China
	Chevrolet	18	From 1911	Flint, Michigan, United States
	Continental	1	1956-1959	Dearborn, Michigan, United States
	Chrysler	11	From 1925	Highland Park, Michigan, United States
	Csepel	1	1950-1992	Szigetszentmiklós, Hungary