A pioneering hydrogen-powered engine developed by engineers in South Korea is poised to redefine the landscape of green transportation. The collaboration between KIMM and Hyundai has yielded a two-liter engine featuring direct hydrogen injection and high-pressure combustion, delivering sustainability and reduced emissions. This innovative engine reduces CO2 emissions by 98% and fine particles by 90% compared to gasoline engines, while maintaining a thermal efficiency of 40% and minimizing NOx emissions to less than 15 ppm without traditional exhaust treatment systems, aligning with EU standards. The technology underscores hydrogen power as a viable alternative in the pursuit of cleaner mobility and environmental preservation. The engine's testing phase signifies progress towards broader adoption, signaling a shift towards eco-conscious solutions in the automotive industry. As the journey continues, the hydrogen engine emerges as a promising contender alongside electric vehicles, driving the automotive sector towards a cleaner, greener future.