ABSTRACT Rising prices for oil and its other derivatives have encouraged those who are part of developments in the automotive industry to design and manufacture more fuel-efficient and environmentally friendly vehicles. Nowadays, oil prices are rising day by day, while the turmoil over environmental protection is intensifying, so it is only a matter of time before conventional vehicles are completely removed from the roads, and their primacy is taken over by hybrid and / or electric ones. The topic of this paper is related to hybrid vehicles, is cars, so they will be paid more attention to. Globally, it can be said that they emit significantly less polluting (harmful / toxic) gases into the air and the environment around us, and are therefore more environmentally friendly for everyday use than vehicles powered by internal combustion engines. According to the current stage of development in the automotive industry, hybrid vehicles are by far the best alternative to classic vehicles, because they have somewhat acceptable prices, which is not the case with electric ones. Tendencies that presuppose the introduction of alternatives, including hybrid vehicles, have their foundations in current trends, is they are imposed in the EU and other more developed countries in the world. The mentioned trends are much more significant day by day, due to the increasing mass exploitation of fossil fuel resources, especially oil, the processing of which produces gasoline and diesel fuel. In addition to all the above, it should be said that today's traffic is one of the main "responsible" for the resulting climate change, or global warming on the planet that everyone is talking about. Thus, the current traffic situation is unsustainable, regardless of whether it is observed over the medium or long term, unless mitigation measures are taken, as this can ultimately lead to extreme effects for the entire population on Planet Earth. automotive industry, hybrid vehicles, environmental protection