The two nine-year old girls I took to Cars 2 thoroughly enjoyed it. The story is a little convoluted, but they were able to follow it and not get bored. Mater has a much larger role in this film, but the friendship between McQueen and Mater is a huge part of the story.
Toy Story 3 continues the story of Andy, Buzz, Woody and the gang of toys. This is a heartfelt story of growing up, letting go and what is means to truly love. You have to see this movie.