Hydrogen-powered cars, known as fuel cell electric vehicles (FCEVs), are seen as a promising solution for sustainable transportation. These vehicles operate by using hydrogen as a fuel source, which undergoes an electrochemical reaction in a fuel cell to produce electricity. The core technology of hydrogen cars lies in the fuel cell stack, where hydrogen and oxygen combine to generate power for the electric motor, with water vapor as the only emission. Electric motors in hydrogen cars provide efficient and eco-friendly driving experiences, akin to battery-electric vehicles, with quick acceleration and zero emissions. Challenges like hydrogen storage and refueling infrastructure exist, but advancements aim to improve accessibility and efficiency in the future. The environmental benefits of hydrogen cars are significant, as they produce no harmful emissions apart from water vapor, offering a clean alternative to traditional gasoline-powered vehicles. The environmental impact, however, hinges on the method of hydrogen production, with potential for carbon-free operations using renewable energy sources. While hydrogen cars face hurdles such as limited refueling stations and energy-intensive production processes, the automotive industry's investments in fuel cell technology promise a bright future. Companies like Toyota, Hyundai, and Honda are leading the charge in advancing hydrogen-powered transportation, aligning with sustainability goals and paving the way for a cleaner automotive industry.