The tendency to have a standard set-up for several model of vehicle of the same brand led to the realization of modular platform, that’s compose of underbody, lower part of Body In White and battery pack, on which it can be installed directly the components of the various models. This procedure led to development of alternative ways to do the different dynamic tests of impact resistance of the platform to verify the resistance of the protective shell of the battery. The aims of the Thesis are the study and develop an analytical methodology to permit to study on electric vehicles platforms several models of cars, characterized by a variable weight of upperbody, the dynamics after a side pole impact and the analysis and comparison with different parameters that it can be modified directly on the model, having with the main aim the maximum dynamics alignment respect to the same test done it on a full vehicle considering the EuroNCAP standards.