This master thesis, carried out in Powertech Engineering Srl and commissioned by Aston Martin Lagonda Global Holdings plc (AML), concerns an analysis aimed at minimizing the fuel consumption of a high-performance Hybrid Electric Vehicle (HEV). In a HEV one or more Electric Machines (EMs) are added to a conventional Internal Combustion Engine (ICE) in order to save fuel and reduce CO2 emission, but the powertrain complexity is nevertheless increased. Thus, in a hybrid powertrain, the additional energy reservoir introduces an additional degree of freedom, and the benefits provided by the hybridization can be fully exploited only by means of an ad hoc powertrain control strategy.