Easy game, shouldn't take long to beat, good for easy gamerscore.
You play a car called Lightning Mcqueen and you participate in numerous races, you also get to play some other characters too in some fun races and minigames. I found it quite easy to beat the game, still havent found all the postcards though but otherwise very easy game to pickup some gamerscore.
Graphics are definately not up to xbox 360 standards but are ok and the framerate is rock solid throughout the game. Havent seen the movie but the game has a story you can follow throughout the game via the cutscenes, needless to say the story is about winning the Piston Cup and beating your arch rival Chick Hicks. There are some funny bits in the game with a Pickup truck called Mater, where you get to do some stupid stuff like driving backwards :) Worth a rental :)