The aim of this thesis work is the conversion of a Fiat Panda variant ‘1108 i.e. 4X4’ into a hybrid vehicle, for the purpose of its participation to the long-distance amateur rally, called “Panda Raid”, in the year 2020. The development process of the car’s model follows the guidelines of the V-shaped design, allowing the modeling of the entire vehicle in the Simulink environment. The starting model consist of a longitudinal driver which takes in input a velocity profile to follow and returns the commands of acceleration and braking to the vehicle (system’s plant). It includes the mapping of the real engine and the values of all the driveline’s ratios taken from the datasheets.