In this paper, we design and implement a nextgeneration hybrid Internet of Vehicles (IoV) communication system, which integrates DC-based power line communication (PLC), visible light communication (VLC), and 3G/4G mobile communication techniques. As a result, the proposed system can achieve the goal of interconnection of in-vehicle (IV), vehicleto-vehicle (V2V), and 3G/4G mobile networks, and therefore can provide flexible services and driving safety. The prototype system implemented has been tested to demonstrate the video transmission through PLC on a real vehicle and V2V data transfer by VLC. Index Terms-DC power line communication (PLC), driving safety, Internet of Things (IoT), Internet of Vehicles (IoV), visible light communication (VLC) I. INTRODUCTION Nowadays, the Internet of Things (IoT) techniques have widely been applied in many fields such as smart homes, intelligent campuses, smart cities, and intelligent transportations. The concept of the IoT techniques is also employed in the automotive ecosystem and provides mechanisms to integrate connected components in automobiles, thus forms connected cars named as Internet of vehicles (IoV) [1]. Datta et al. [2] pointed out that the most important claim of the next-generation IoV development is to provide seamless interoperability among vehicular components, consumer smart mobile devices, and some external computational platforms (such as edge computing devices and cloud-based servers). Recently, the telematics technology is no longer limited to the integration of electronic components and multimedia applications in a vehicle but is gradually in the way toward developing the next-generation IoV communication systems. The advanced IoV communication could integrate invehicle (IV), vehicle-to-vehicle (V2V), low power wide area networks (WANs) [3], vehicle-to-infrastructures