The technical parameters of the chassis, the resistance to moving, and the materials on a car are related to each other and are represented by the reference parameter which is the mass of the car. Vehicle mass is one of the most important factors affecting the vehicle's resistance to motion. The influence on the value of the mass is the material properties of the manufacturing. The traditional material for the basic body is steel, which is heavier than the light material, and the resistance to motion of the car will be different in these two cases. This paper analyzes relationship between mass and two material types on the body to resistance forces of the car moving by using simulation method. The study results can be applied in designing and manufacturing of the automobile components.