Core Viewpoint - The construction of underwater data centers is expected to reshape the future of smart cars by addressing the increasing computational demands of the automotive industry, particularly in the context of autonomous driving and vehicle-to-everything (V2X) communication [4][9]. Group 1: Underwater Data Centers - The Guangdong Province has issued an action plan to promote the integration of the digital economy with the marine industry, including the exploration of underwater data centers [3]. - Underwater data centers utilize advanced technologies to ensure the safe operation of servers under high pressure, connecting to shore stations via underwater optical cables for stable power supply and high-speed data transmission [7][8]. - These centers can significantly reduce operational costs by over 40% due to lower cooling requirements and do not occupy valuable land resources, addressing the scarcity of land in urban areas [8]. Group 2: Computational Demands of Smart Cars - Smart cars, especially those with Level 3 autonomous driving capabilities, require substantial computational power, processing data at rates of several gigabytes per second [5]. - Traditional land-based data centers face limitations in energy consumption and land availability, making them less suitable for the growing demands of the smart automotive sector [6]. Group 3: Benefits of Underwater Data Centers for Smart Cars - Underwater data centers can provide low-latency computing support, reducing data transmission delays to an average of 14 milliseconds, which is critical for real-time decision-making in autonomous driving [9]. - The integration of underwater data centers with offshore wind power can create a sustainable ecosystem that supports the smart automotive industry while promoting carbon neutrality [10]. - Future developments may lead to a "vehicle-road-cloud-sea" collaborative smart transportation system, enhancing traffic flow optimization and personalized travel services [10].