Summary: With only slight modifications and some new minigames, it seems that the developers of this game basically took the original Cars game and overlayed thier new storyline and characters. Radiator Springs looks just like the Cars game, it's not a bad thing, but I was surprised of the extreme similarities between the two. If you want a digression from the original Cars game, try the Race-o-Rama game instead. Enjoy your playing.
Summary: At it's simplest, its an arcade style racer, based on the "Cars" universe. It breaks very little new ground from the original Cars game, and feels more like an expansion pack rather than a completely new experience. Some new characters are introduced, and some other race types, but still nothing new. However, it's a refreshing change from the realistic and semi-realistic racing games that make up a majority of the genre.