It'll be interesting to see what actually happens here. Carsland is clearly an old school, high-end Disney product, which we haven't seen here in the States in years, but why does the answer seem to be only licensed tie-in to everything and more importantly Pixar? (I understand the whole branding, etc., just more of a rhetorical statement here.)
Secondly, if we end up with Radiator Springs Racers, it reminds me of Star Tours and Body Wars. Although the visuals are different with RSR and Test Track, it's the same vehicle, same track based concept, etc, although it's better than what Universal is apparently doing in bringing in Transformers (then again, it seems like this is just an added bonus to Universal, kind of an unexpected surprise), while it is awesome, it's dead-on with Spiderman down to even timing of many of the effects.