Car emissions have always caused a lot of problems for the people around the world. According to the statistics released by the Iranian Environment Organization, cars are the main source and have the highest share of pollution in the country. It has always been one of the main suggestions made by automakers to have an optimized car such as a mini cars in order to deal with these kind of issues. The purpose of this project is to design a small, low-emission vehicle, This three-wheeled hybrid car will designed on a tadpole configuration in the size of mini cars so that it can be taken as a step towards designing a clean vehicle. In this project, a full car platform of a three-wheeler designed, in which the 3D model of the car is made by SolidWorks and Catia. First, the car platform is being modeled on the described frameworks and design criteria so that after the design of the suspension and the steering ystem, is already prepared to evaluate the dynamics behaviour of the car by using the Adams/Car software. Finally, comparing the dynamic performance of this platform with the platform of a four-wheeler car, the dynamic capabilities of this three-wheeler platform over four-wheeler vehicle are shown. Key Words Emissions,Concept Design, Mini Car, Hybrid, Tadpole, Three-Wheeler, Vehicle Dynamics, Adamhy; Car