This Stirling engine prototype is an innovative thermodynamic system designed to utilize waste heat from the exhaust of a scooter engine. By converting this unused thermal energy into mechanical power, the setup demonstrates an efficient and eco-friendly approach to hybrid mobility. Built with precision-engineered components, the engine operates on the Stirling cycle, using external heat as its energy source. When attached to a scooter’s exhaust outlet, it captures and converts the heat into additional shaft work, enhancing overall energy utilization and fuel efficiency. This prototype highlights sustainable energy conversion, compact design, and reliable performance—ideal for applications in automotive research, hybrid vehicle development, and renewable energy demonstration.