Hydrogen engines are one of several options for achieving carbon neutrality. With the aim of eventually bringing hydrogen-engine motorcycles to public roads, the H2 Buddy Porter Concept is being jointly developed with Toyota Motor Corporation, which created a new compact, high-pressure hydrogen tank suitable for motorcycles and scooters, and certified by the relevant regulatory bodies. Yamaha Motor was primarily responsible for developing the hydrogen engine, chassis, and other components. On a full tank, the H2 Buddy Porter Concept boasts a measured cruising range of over 100 km. The model also takes into account the various technical requirements for public road use—based on existing regulations—and complies with Euro 5 emissions standards, including those for NOx.