This report presents the design, fabrication, and testing of a specialized rig tailored forevaluating the performance and efficiency ofsolar racing cars. Solar racing has emerged as aprominent avenue forsustainable transportation, with teams worldwide competing to developinnovative designs and technologies.Central to this endeavor is the need for reliable testing infrastructure to assess vehicledynamics, power output, and overall efficiency.The test rig described herein integrates various components to replicate real- worldconditions encountered by solar racing cars. It consists of a customizable platform equippedwith solar panels, a simulated road surface, and instrumentation for data acquisition. Thedesign prioritizes versatility, enabling researchers and teams to conduct a wide range ofexperiments to optimize vehicle performance.Key features of the test rig include adjustable tilt angles for solar panels, variable loadconditionsto simulate different terrains and driving scenarios, and sophisticated data loggingcapabilities for comprehensive analysis. The fabrication process involved a combination ofoff-the-shelf components and custom-made elements to ensure precision and reliability.Initial testing of the rig demonstrates its efficacy in evaluating the performance of solarracing cars under controlled conditions. By providing a standardized testing environment,this rig facilitates comparative studies between different vehicles and allows for iterativeimprovements in design and technology.Furthermore, it serves as a valuable educational tool, offering hands-on experience forstudents and enthusiasts interested in solar-powered transportation.In conclusion, the development of thistest rig represents a significant advancement in thefield of solar racing, offering a practical solution for evaluating the performance ofsolar-powered vehicles. Future work will focus on refining therig design, expanding its capabilities, and fostering collaboration within the solar racingcommunity to drive innovation and sustainability in transportation.