The Imported trucks from CoD have wayy too big of a clip on them. When you try and stand on the trailer(?) bit at the back, you stand floating up at the height of the cabin(?), meaning, yanno, speccy boosts.

Not gamebreaking or anything, but the propellers in the Helicopter do not clip with the player so it is impossible to just run up them. At least it is for the one shown in the picture, I don't know about the others but I walked straight through the left propeller.