The Authors examine the characteristics of driver behavior, their influence on vehicle control, and the use of vehicle control as a tool for the competitiveness of transport companies, ensuring the quality of their service, and improving the environment (ecology). The increasing competence of drivers in vehicle control provides an opportunity to increase the vehicle operation performance and reduce CO2 emissions. A numerical analysis of the combustion process in the cylinder of internal combustion engine (ICE) was performed using the AVL Cruise software package. Analyzing the numerical mathematical analysis of the heat release processes in the cylinder, the change in the CO2 release of the ICE is evaluated when the vehicle mass controlled by the driver actions.