The scope of this thesis is the development of a generic vehicle model that will be used in the validation of the design of barriers for terrorist attack mitigation. More specifically, to simulate impacts of vehicles on barrier that will access the resistance of a given barrier, which is going to be used in city centres, in order to protect specific areas that could be considered as potential targets for terrorist attacks. The model this thesis studies refers to a vehicle of the category N1 according to the standard IWA 14. It is designed by SVS FEM and co-developed in collaboration with the European Commission Joint Research Centre and Politecnico Di Torino.