Intelligent and sustainable vehicle networking (ISVN) is a promising new paradigm for transportation that leverages advances in vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication to enable vehicles to cooperate with each other and with the infrastructure to improve traffic safety and sustainability. Centralized V2V communication systems have limitations in terms of reliability and scalability, limiting their ability to meet the growing demands of ISVN. This paper proposes a decentralized V2V communication system that addresses the limitations of centralized systems by using a decentralized, collaborative, and intelligent approach. The proposed system consists of three main components: on-board vehicle units (OBUs), roadside units (RSUs), and a cloud server. The proposed system has the potential to significantly improve ISVN by enabling vehicles to cooperate with each other and with the infrastructure to improve traffic safety, efficiency, sustainability, and scalability. Specifically, the proposed system can improve traffic safety by reducing the number and severity of traffic accident. In addition, it will enhance traffic efficiency by enabling vehicles to optimize their routes and speeds. Also, it will elevate the scalability and reliability of ISVN by eliminating the need for a central fusion server. The proposed system is implemented using the Veins simulator, which is one of the most respected simulators for V2V communications systems. The proposed system outperforms other traditional centralized systems in several ways, including increased reliability and reduced latency.