When Zef arrests Maxim, he orders young man to drop his belt, and he does. In next scene, we see Maxim still wearing his belt.
Red armored car, which Maxim steals near the final, was designed without a door. So the crew had to cut the hatch in the tank's plating. When Guy Gaal knocks the car, it can be seen that the hatch cover is actually made of wood.