This work explores how Fuel Cell Hybrid Electric Vehicles (FCHEVs) can drive the shift toward the cleaner and more sustainable transportation. It focuses on Proton Exchange Membrane Fuel Cells (PEMFCs), which produce electricity through a reaction between hydrogen and oxygen, leaving only water and heat as the byproducts. The study reviews how fuel cells work alongside energy storage systems such as lithium-ion batteries and supercapacitors. Batteries provide steady energy and long-term storage, while supercapacitors handle quick bursts of power and help recover energy during braking. Together, they make the system more efficient and responsive. The paper also discusses key challenges, such as improving fuel cell lifespan, reducing costs, and building reliable hydrogen production and refueling networks. Research shows that combining PEM fuel cells with advanced storage technologies can reduce hydrogen use, improve performance, and extend system life. Overall, this study highlights that FCHEVs are not just an experimental idea but a practical solution for achieving zero-emission transport, provided continued innovation and infrastructure development keep pace.