Abstract
The automotive sector has recently undergone enormous transformations, mainly dictated by the requirements to reduce the negative impact of the automotive industry on the natural environment. Reducing emissions from this sector has become the main driver of change in modern motor vehicles. Unfortunately, due to economic differences in the world, this process is not the same in all countries. Despite these differences, however, even in less developed countries, efforts are made to reduce vehicle exhaust emissions. The work conducted road tests, bench, calculated comparative studies of fuel, economic, environmental and energy performance of a serial car with a standard carburetor power system and equipped with an electronic gasoline injection system and a three-component catalytic converter under operating conditions.