Once again, the open world has changed since Cars Mater-National (2007). All of the changes brought in, including the Ornament Valley Airport, Fillmore's Nature Park and the Upper Mine, have been removed, but some new changes came as well, which include a road running through the field in Ornament Valley, a new section tunnel in the Abandoned Mine in Tailfin Pass and the gates to Sarge's Boot Camp being open. Besides that, the 3 parts of Radiator Springs are now 1 world with no loading required to switch between any of the 2. Players can also explore 4 new locations outside of Radiator Springs, which are Radiator Springs Speedway, Santa Carburera, Autovia, and Motoropolis City.
On the PSP version, in the cut-scene before the final race, Chick Hicks still says that he only used Candice, Stinger, El Machismo and the VINs to learn how to beat Lightning, even though the VINs do not appear in that version.