This thesis is carried out in the context of a design of an electric vehicle. The purpose of the thesis is to model and to simulate the longitudinal dynamic behavior of a full electric vehicle, in order to design the battery pack and to evaluate the vehicle’s performance and range, through the standard driving cycles NEDC and WLTC. The work is developed in the Matlab-Simulink environment, the electric vehicle is modelled as three different blocks that interact with each other: a vehicle block, a motor block and a battery block. The modelled vehicle follows the driving cycles with two different approaches, a forward approach, where the vehicle follows strictly the imposed speed profile, and a backward approach, where the model simulates the driver that tries to follow the driving cycles.