Honda Motor Co. has announced its plans to independently develop and manufacture its next-generation hydrogen fuel cell system in Japan, moving away from its partnership with General Motors. The new system, unveiled at the International Hydrogen & Fuel Cell Expo in Tokyo, boasts double the durability, half the cost, and triple the volumetric power density of the current system developed with GM. With an increased power output of 150 kW, up from 78 kW in the GM unit, the system's design allows for more flexibility in layout and compactness. Honda will start producing the new fuel cell system in 2027 at a new plant in Moka, Japan, capable of manufacturing 30,000 units annually. The decision to develop the hydrogen technology independently signifies a shift in alliances in the auto industry, with Honda focusing on collaborations with Japanese automakers Nissan and Mitsubishi, while GM partners with Hyundai. Despite the termination of certain joint projects between Honda and GM, they continue to work together on vehicles powered by GM's Ultium batteries. Both companies are now concentrating on advancing their respective electric and autonomous vehicle technologies. The move also reflects Honda's exit from its involvement with GM's self-driving taxi subsidiary, Cruise, signaling a commitment to explore new mobility solutions for customers.