The Pioneer 25, the world's first hydrogen-powered off-road race car, recently completed its final testing session in Fontjoncouse, France, gearing up for its race debut in the Extreme H championship. Developed to run on green hydrogen, the vehicle emits only water vapor, marking a significant progress in clean motorsport. The testing focused on performance improvements, tire upgrades, and fine-tuning technical components to ensure the car's readiness for the extreme conditions of off-road racing. Former Extreme E champion Molly Taylor and driver Kevin Hansen provided positive feedback on the car's capabilities and expressed enthusiasm for the upcoming races in the Extreme H series. The Pioneer 25, equipped with a powerful 400kW hydrogen fuel cell system, is designed to handle steep hills and the most challenging off-road terrains, weighing 2,200 kilograms and boasting impressive acceleration. Engineers highlighted the importance of the recent testing in enhancing performance and endurance, with a focus on the hydrogen fuel cell customization. With the first race of the FIA Extreme H World Cup expected later this year, the Pioneer 25 represents a significant step towards greener and more sustainable motorsport, ushering in a new era of hydrogen technology in racing.