Reinforcement system for a vehicle

A system for use in a reinforcement system of a vehicle, the system being configured for reinforcing the vehicle, the system comprising:

• side walls;
• a floor extending between the side walls and meeting with each side wall along an intersection line dividing the side wall into an upper and a lower side wall section, the floor having a length and a width;
• a belly attached to the lower side wall section at a location thereof spaced from the intersection line;
• and
• reinforcement elements configured to localize, at the lower side wall sections, bending of the side wall caused by movement of the belly towards the floor, some of the reinforcement elements provide the length of the floor with a greater resistance to bending in a vertical direction than the width of the floor and some of the reinforcement elements reinforce the upper side wall section of the side wall and the lower side wall section of the side wall with an intermediate section between the upper and lower side wall sections having less reinforcement than either of the upper and lower side wall sections.