The paper presents a simulation method of the rigid barrier frontal impact car crash test. LS-DYNA software was applied. The simulations were performed for the Dodge Neon, model 1996. The car motion and the force history during the rigid barrier impact at different velocities were analyzed. Moreover, laboratory results obtained for the fixed barrier frontal impact crash test were examined and compared to the results obtained from a FEM model for a chosen car. The dependence of car stiffness coefficient on car structural parameters was also analyzed. Moreover the crush energy and stiffness coefficient distribution was examined.