Emerging Internet of Things (IoT) is considered as blessings for the automotive industry to offer vast opportunities to inventively create, develop, and enhance seamless services for the comfort of the users. Over time, IoT has significantly expanded and evolved in a numerous variety of automotive applications. Motivated by this growing importance of automotive IoT, this paper presents a critical literature survey on the utilization of IoT technology in the automotive industry, emphasizing the evolution of technology-enabling connectivity and applications. Initially, a review of the transformation and development of IoT-enabled smart systems for the vehicle is presented along with an extensive evaluation of the evolution of technology enabling IoT connectivity and applications. This then follows by the formulation of a comprehensive application scope of IoT technology and a general conceptual framework of IoT applications in the automotive industry. Detailed investigation of the benefits and challenges associated with deploying IoT applications is subsequently discussed together with proper identification of current and future technological challenges in the automotive industry. Furthermore, this study also focuses on assessing various connectivity types embedded in the sensor node functionalities and linked them with associated applications to reveal technical challenges for future automotive IoT advancement. This work is envisaged to shape the future perspectives of IoT technology in the automotive industry and impact the development of IoT platforms devised by the automotive industry-academia community. The promise of this technology will be realized through addressing new research challenges in the vehicular IoT paradigm, and the design of highly-efficient communication technology with minimum cost and efforts.

新兴的物联网（IoT）被视为汽车行业的幸事，它为创新创造，开发和增强无缝服务提供了巨大的机会，使用户感到舒适。随着时间的流逝，物联网在各种汽车应用中已显着扩展和发展。受汽车物联网日益重要的推动，本文提出了有关汽车工业中物联网技术利用的重要文献调查，着重强调了支持技术的连接性和应用程序的发展。最初，将对车载物联网支持的智能系统的转换和开发进行回顾，并对能实现物联网连接和应用的技术发展进行广泛评估。然后，通过制定物联网技术的综合应用范围和汽车行业物联网应用的一般概念框架来制定。随后讨论了与部署IoT应用程序相关的优势和挑战的详细调查，并正确识别了汽车行业当前和未来的技术挑战。此外，本研究还专注于评估嵌入在传感器节点功能中的各种连接类型，并将它们与相关应用程序链接起来，以揭示未来汽车物联网发展的技术挑战。预计这项工作将影响汽车行业物联网技术的未来前景，并影响由汽车行业学术界设计的物联网平台的发展。