Carburetor County

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.

In Cars the Video Game, players started in Radiator Springs. When they finished a race in Chapter 3, they would then unlock Ornament Valley. In Chapter 4, they would unlock the 2 sections of Tailfin Pass pronouncing that they were districts. The first time you enter Tailfin Pass in Chapter 4, the district would be the Lower Ends while the other part of the roads of Tailfin Pass were the Highlands. 

In Cars Mater National, after you beat a stadium race, you would unlock Ornament Valley and then Tailfin Pass. But all 3 areas were smaller than Cars the Video Game due to technical issues. 

In Cars Race o Rama, the area's had no longer anymore loading times besides the PS2 version. In other versions, the player could explore the Carburetor County map with no loading times. They were the same sizes for Cars the Video Game but new roads were cut in a few locations that are also accessible to the player.

In WOC2, Radiator Springs would be the first map the player would unlock, then Ornament Valley, then Tailfin Pass, and so on. While in iWOCO, the first map would be Snowhood Valley, then Radiator Springs, then Willy's Butte, then, Fillmore's Fields, then Redhood Valley, before it got to Ornament Valley, Wheel Well, and Tailfin Pass.