With the development of the automotive industry, scientists have come to know that vehicles with internal combustion engines pollute the environment, not only the air, but also with noise and vibrations. Certainly experts were forced to find an alternative mode of transportation because the awareness of the use of fossil fuels, which are a non-renewable source, and the realization that there are fewer fossil fuels in the world, grew every day. An electric car has been presented as an excellent solution for preserving our environment because it does not emit any harmful gases into the atmosphere and does not pollute the environment with noise. But this technology is not practical for everyday use. Charging electric cars takes a lot of time, and the use of a single charge is short, i.e. the mileage is, compared to conventional cars, much shorter. Another problem is its price. Electric cars are quite expensive today which makes them inaccessible to the majority of the population. A hybrid vehicle has been designed as a compromise between the two types of drive. The word comes from the Latin "hybrid" which means mixed. The hybrid vehicle uses two types of propulsion, one of which is an electric motor and the other, an internal combustion engine, i.e. a diesel engine or an Otto-engine. This paper explains environmental pollution with conventional vehicles and analyzes a hybrid vehicle with its operational characteristics. The Toyota Prius, which is the most famous hybrid vehicle, is described in detail. Keywords: environmental pollution, hybrid vehicle propulsion, Toyota Prius