The article discusses the challenges and opportunities facing the global truck making industry in transitioning towards zero emissions. Major truck manufacturers such as Volvo and MAN are considering hydrogen combustion engines as a potential solution to reduce emissions in the industry. While electric batteries pose weight and charging time challenges for long-haul freight operations, hydrogen fuel cells offer advantages in weight reduction and extended range for trucks. However, the adoption of hydrogen technologies comes with significant costs as companies need to redesign truck systems. Truck manufacturers are focusing on developing hydrogen combustion engines as a quicker and more cost-effective alternative to meet the industry's energy transition challenges. Companies like MAN and Volvo are working on hydrogen combustion engine models alongside hydrogen fuel cell trucks, aiming to have these technologies coexist for different vehicle types and uses. Despite the potential of hydrogen combustion engines, challenges such as harmful emissions and the need for specialized filters are being addressed by industry players like Bosch and Westport Fuel Systems. One of the main hurdles facing the industry is the limited availability of green hydrogen, which is essential for powering hydrogen combustion engines and fuel cells. Efforts from the European Union, the United States, truck makers, and energy giants are underway to fund green hydrogen projects. However, building sufficient fueling infrastructure is a slow process that will take years to accomplish. Truck makers like Daimler, Cummins, Iveco Group, and DAF are actively working on hydrogen combustion options to reduce emissions in the industry. Overall, the global truck making industry is navigating a complex journey towards zero emissions, balancing the advantages and challenges of adopting hydrogen technologies. Despite the hurdles related to green hydrogen availability and infrastructure development, the industry remains optimistic about the potential of hydrogen combustion engines to complement existing fuel cell technologies in achieving a sustainable future for trucking.