This work presents the design of suspension system of automobile which is based on study of the effects of air when the vehicle is in motion and this was focused on optimum size, angle, and shape of the spoiler. The spoiler or winds are the additional attachments used for an automobile which controls the flow of air and lift and it reduce suspension of the system. By reducing lift and drag forces with better traction control of the wings and the mileage of the vehicle will be improved. The wings in an automobile are used to decrease the lift force and have to control over traction. This concept of the design has an adjustable wing which can be altered as per their requirement. As they are adjustable, they can be rotated along a single axis which helps in to change the drag on the vehicle thus resulting to increase the mileage of the vehicle. They are placed on the rear side window of the vehicle.