The Vehicle stability is the major concern in the high-speed car being produced now a day. The fuel consumption is mainly affected by different forces which include the force due to drag and lift, force due to self-weight, side forces and also the thrust acting on the vehicle. About 60% of the drag is which is caused due to the relative motion between the air and the vehicle is created at the rear end. The fuel consumption can be increased by reducing the drag force at the rear end. So, this paper aims to reduce the drag force which helps in improving the fuel consumption which leads to environment protection. We used a Sedan car with various types of spoilers for reducing the aerodynamic drag force. The design of the car was done on SOLIDWORKS and also it was used for the analysis in SOLIDWORKS FLOW SIMULATION. The analysis was done to find out the drag and lift forces at various velocities and by using different spoilers. This study proposed a numerical model which was effective when done on the computational fluid dynamics (CFD) so as to obtain the different flow structure around the car with spoiler at the rear end. © 2021 Elsevier B.V., All rights reserved.