Abstract In today's world, where fuel prices in all modes of transport are skyrocketing, car manufacturers must find better and innovative ways to make their cars more energy efficient. A reduction in fuel consumption of a vehicle directly corresponds to the non- renewable fossil fuels' lesser consumption and a decrease in vehicular pollution. All road vehicles under driving conditions are made to pass through a wall of air around them and displace this air envelope as efficiently as they can depend upon the vehicle's shape and frontal area. As it flows around the car, this air envelope is responsible for drag force, which is the main opposition to the vehicle's forward motion. This drag force is proportional to the square of the velocity of the car and as a result, increases significantly after certain speeds. In most passenger vehicles due to constraints created by cabin space, regulations, etc., the cars end up being somewhat obliquely and boxy shaped, leading to turbulence, particularly towards the rear end of the car. This formation of turbulence results in flow separation at a point near the vehicle's rear windshield, which causes the boundary layer to not adhere to the body surface, expand and create a high-pressure region which induces drag along this portion of the vehicle. When placed at the specific distance upstream of the flow separation point, the vortex generators play a pivotal role in reducing drag and lift. And coupled with a rear wing can give suitable downforce values and drag reduction by redirecting the flow of air at the right angle of approach to the wing and preventing flow separation. The drag reduction is obtained by changing the angle of attack of the airstream with the wing by changing the orientation of vortex generators.