As technological innovations, such as connectivity, automation, sharing, and electrification, bring major changes to the automotive industry, expectations for and the importance of information and communication technology (ICT) are increasing rapidly in the industry. The NTT Group and Toyota Motor Corporation are collaborating on the research and development of an ICT platform for connected vehicles. They conducted joint field trials from 2018 to 2020 and established the basic technology through various use cases and verification of the platform. In the Feature Articles in this issue, the NTT Group operating companies and NTT laboratories that are participating in the collaboration present the details of the field trials, the results, technologies applied, value provided, and future issues.