The escalating global energy demand, driven by factors such as population growth and industrial expansion, underscores the urgency for sustainable energy solutions. Fossil fuels, the mainstay of current energy production, face challenges due to finite reserves and environmental impacts like rising CO2 levels. With a significant portion of emissions stemming from transportation, the need to decarbonize the sector is paramount. Strategies such as improving fuel efficiency and electrification are crucial, but commercial transport's growth necessitates innovative solutions. Regulatory frameworks, such as the EU's 'Fit for 55' and the EPA's standards, push for emissions reduction, prompting a shift towards cleaner technologies. The emergence of hydrogen as a viable alternative in transportation is gaining traction. Studies exploring hydrogen's role in internal combustion engines showcase its potential for near-zero emissions and high efficiency. By integrating hydrogen into ICEs through methods like direct injection and turbocharging, researchers have demonstrated the feasibility of achieving low emissions while leveraging existing technologies. Turbocharged direct-injection hydrogen engines exhibit promising combustion characteristics, offering enhanced power density and efficiency compared to traditional models. These advancements pave the way for hydrogen's widespread adoption in powering future vehicles, contributing to emission reductions and sustainable energy practices.