Briefly: In 2012, a brand new land at Disney's California Adventure will open: Cars Land. Based on the classic Pixar film Cars, the land is a part of a massive renovation going on at the park that has been in the works for several years.
Above you can see a "sneak peek" at one of the vehicles for the Radiator Springs Racers, an Autopia-type attraction that is being billed as the E-ticket ride for the new land.
Those cars look like they are going to be very cool. This is getting exciting.
Source: Disney Parks Blog