Interaction between cars (V2V communication) is one of the key technologies of the future for safe and efficient road traffic. With the development of autonomous car systems, this technology is becoming increasingly relevant, contributing to increased road safety, reducing traffic jams and optimizing the environmental impact of vehicles. To accelerate the integration of smart cars into society, it is necessary to conduct research on the effectiveness of their communication protocols in order to ensure reliable communication between vehicles. With the constantly changing speed of cars, routing protocols are subject to high requirements regarding the stability and efficiency of information transmission. This paper investigates the performance and reliability of vehicle-to-vehicle (V2V) communication using IEEE 802.11p and IEEE 1609.4 protocols in dynamic traffic conditions. Taking into account the influence of the number of nodes and the size of the queue on the delay in the network, a study was conducted that allows to evaluate the effectiveness of traffic management algorithms. Simulation results provide an opportunity to optimize network operation and minimize delays, which is critical for the stable functioning of systems in real conditions. They can be useful for the further development of intelligent transport systems and optimization of communication protocols in real operating conditions.