Japan's automotive giant, Toyota, has made a surprising shift in its development strategy by focusing on internal combustion engines (ICEs) that utilize hydrogen and bioethanol as green fuels. This unexpected move diverges from the industry trend towards electric vehicles (EVs). Toyota's aim is to enhance the efficiency and sustainability of their vehicles while retaining the performance associated with traditional ICEs. The new engines will be versatile, capable of using hydrogen and bioethanol, and will work in conjunction with electric motors in hybrid vehicles. Notably, Toyota is pioneering the development of hydrogen technology, with a focus on mitigating challenges related to hydrogen combustion efficiency through innovative solutions like hydrogen atomizing injectors developed in partnership with Denso. Additionally, Toyota is collaborating with Subaru and Mazda to promote sustainable mobility through a multi-pathway approach that supports the coexistence of different powertrain options in various markets. This initiative underscores the commitment of these Japanese automotive brands towards achieving net-zero carbon emissions in the near future, highlighting the importance of clean ICEs as a transitional solution alongside EVs.