The automobile industry is in a period of dramatical change once in 100 years, and there are calls for responding to new technology areas called "CASE" and utilizing new technologies. In automotive development, digitalization is progressing in the areas of advanced driver assistance systems (ADAS) and vehicle control, and the amount of software running in cars is rapidly increasing. It makes the way cars are manufactured change dramatically. In this presentation, we will introduce the example of EyeSight, which has been developing in-vehicle software in-house for more than 30 years, and introduce the prospects for how digital cars will create the future of Subaru.