The Human Body Models (HBM) has opened a whole new world about the analysis of the injuries and the biomechanical results of car crashes. The level of details of these models together with the Finite Element Method (FEM), offer the possibility of getting closer to the real consequences of a car crash on the human body, in comparison with the traditional rigid dummies. The aim of this thesis work is to evaluate the “Abbreviated Injury Scale” levels (AIS, risk to life scale) of possible injuries happening to the abdominal organs of a rear passenger during a car crash using an innovative injury criterion: The Peak Virtual Power method (PVP), an energy-based engineering indicator, linearly proportional to the AIS, that applies to all body traumas and severities.