The modern world’s challenges regarding the CO2 emission levels and the increasing cost of fuels established new development targets for the automotive industry. The birth of electric vehicles put a new option on the market for trying to reduce pollutants emissions; their weak points, however, highlight the need for research and development in order to offer in the future a product that can be comparable to the most successful cars equipped with internal combustion engines. This new generation of ground vehicles, indeed, mainly suffer from a reduced range. For this reason, nowadays, great focus is put on cars’ aerodynamic development for trying to reduce any form of aerodynamic drag (conventional aerodynamic drag and ventilation drag); this approach is as valid as a weight reduction of the entire vehicle in order to lower the power required by the engine for winning these energy losses.