Audio problem: When Mad Max says "How much more can they take from me? They've got my blood. Now it's my car!" The audio does not match his lip movements. The line sounds like a dub recorded in an audio studio. (00:16:40)
Audio problem: When Max is on the front of the people eater's truck, the gunman shoots at Max, then briefly stops. When he starts shooting again, the sound effects of the shooting are too early, as there are no flashes from the gun.
Answer: Presumably he is killed. He is attached to the truck with bungee cords and has no protection from the force of impact in the crash, which is sufficient to break the rig into pieces. There is no way he could have survived the crash.