This Master Thesis work has been carried out in collaboration with Danisi Engineering s.r.l. The company project, called ISIDE (Integrated Systems Innovation Danisi Engineering), deals with the development of a prototype starting from the donor car Lancia Beta Montecarlo (1975) and transforming it into a laboratory for research and development of vehicle dynamics and autonomous controls. The major change with respect the above-mentioned car is the hybridization of the powertrain by substituting the original engine with a more powerful one and the installation of two electric motors on the front axle. The work developed in this thesis consists of two parts: the aim of the first one is the design and set-up of the vehicle, through target setting strategies, weight and inertia analysis, powertrain layout definition and dimensioning of powertrain components.