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.

Reducing exhaust emissions from motor vehicles has become a major task in the design of modern motor vehicles. Internal combustion engines, despite the increasingly frequent restrictions on, for example, entry to city centers, still constitute the majority of the used motor vehicles. For these reasons, it is very important to properly operate and control the used motor vehicles, especially in the field of exhaust emissions. One way is to replacement of the vehicle fleet and individual cars with newer generation vehicles. Unfortunately, due to economic differences in the world, the rolling stock replacement process is not the same in all countries. However, despite these differences, even in less developed countries, efforts are being made to reduce vehicle emissions. This work presents road, bench and computational comparative tests of the fuel, economic, environmental and energy characteristics of a series car with a standard carburetor supply system and equipped with an electronic gasoline injection system and a three-component catalyst under operating conditions.