Extreme H is an upcoming FIA-supported racing series set to launch in 2025, aiming to exhibit the potential and viability of hydrogen technology in high-performance race cars. The series will replace the current Extreme E series which features all-electric-powered SUVs. The inaugural public test of the first hydrogen-powered race car, Pioneer 25, will take place during the Extreme E Hydro X Prix in Scotland. Alejandro Agag, the mastermind behind the Formula E and Extreme E series, spearheads the new Extreme H era with a focus on sustainability and innovation. The Pioneer 25, developed by Spark Racing Technology and fueled by a 75-kW hydrogen fuel cell from Symbio, boasts impressive technical specifications, including a 400-kW output and the ability to accelerate rapidly and handle steep gradients. The series emphasizes gender equality in racing, exciting sporting formats, and engineering advancements to optimize hydrogen usage. Renowned figures like Carlos Sainz, Jenson Button, and Jimmie Johnson are part of the global teams participating in Extreme H. The shift to hydrogen technology signifies a progressive move towards sustainable mobility solutions, signaling a new chapter in the evolution of motorsport and environmental consciousness.