Carburetor County. 2,235 pages on this wiki. Carburetor County is a county in the Cars world. It consists of three places-Radiator Springs, Tailfin Pass and Ornament Valley. The name is frequently mentioned by Mater, as it is the county they are living in, and the county in which Radiator Springs was founded. The other cities in the county are unknown. In Cars: The Video Game, players start in Radiator Springs.