Camera is usually too close.
I have been marathon viewing this series after having only seen #1 in the past. So far I've enjoyed them all, but part 4 had one big negative. Like so many action movies today (Batman Begins and Transformers 2 are others that come to mind) the camera is SO CLOSE to the action.
When there's rapid-fire fights or gigantic robots battling, or groups of speedy cars zipping along, it helps to take a step back and see what's going on. In this movie though, I kept losing track of where the cars were in relation to each other, and couldn't tell what was going in during some of the high speed chases. It wasn't always an issue (I liked the hijacking at the beginning), but there were many instances where there were no wide shots when they would've helped capture the action better.