Cars, while technically proficient with some beautiful animation and backgrounds, is probably the weakest of the Disney/Pixar productions. There didn't seem to be much heart in the story and even when suspending disbelief, it was difficult to get the mind around the premise that cars inhabited this world.The story did pick up with the tractor tipping scene, but overall, it was somewhat less than satisfying. For a collector of the Pixar efforts, I think the movie should definitely be included as it demonstrates how Pixar is evolving as it continues to turn out movies - but this is certainly not one of their best.