In Pixar’s Cars, what is the name of the old highway bypassing Radiator Springs?

Interstate 40 is the highway that bypasses Radiator Springs in Pixar’s Cars.

The new interstate is a major reason the fictional town loses traffic and declines. Once travelers can cross the region without using the older road through Radiator Springs, the town’s businesses and population suffer.

Lightning McQueen becomes connected to the town after leaving the interstate while trying to reach the final Piston Cup race. He damages the road and is required to help repair it, keeping him in Radiator Springs long enough to meet its residents and learn about its history.

The film draws heavily on real American road culture and the decline of towns affected by highway realignment. Radiator Springs is especially associated with historic Route 66, but Interstate 40 is the newer bypass described in the story. Route 66 is therefore a related setting inspiration, not the bypass’s name.