In the midst of the ongoing energy transition and decarbonization of economies worldwide, hydrogen has emerged as a key player, particularly in the form of green hydrogen. The development of a powerful hydrogen combustion engine by AVL Racetech, equipped with a unique water injection system, has turned heads in the industry. This innovative engine not only boasts impressive performance but also addresses traditional power issues associated with hydrogen engines, offering a viable alternative to electric vehicles. The engine's capability to produce 410 hp and 500 Newton-meters of torque, with a specific power density of approximately 205 hp per liter, positions it as a competitive option for top-level motor racing, as confirmed by AVL Motorsport Director Ellen Lohr. Beyond racing, hydrogen combustion engines like the water engine are seen as instrumental in facilitating the transition to zero-emission vehicles, showcasing hydrogen's versatility and potential within the automotive sector. This technological advancement signifies a broader evolution in the perception and utilization of hydrogen, marking a significant milestone in the industry. As the automotive world continues to explore sustainable solutions, the water engine serves as a symbol of victory for hydrogen enthusiasts, heralding a new era where hydrogen-powered roads may soon become a reality.