In the scene where the Hummer is racing down the hill through all the shacks, they make it all the way down with no real noticeable damage to the outside of the vehicle. However, when they shoot the Hummer when it reaches the BOTTOM of the hill, it's bumper is half off. I have a hard time believing that the bumper fell off while maneuvering on flat ground. It would have been better if they would have just shown when it fell off going through the shacks. That's more believable.