This work focuses on the computational study and simulation of aerodynamics around a passenger car using the OpenFOAM software. The problem is defined and calculated using the Tesla Model 3 prototype–an all-electric vehicle highly regarded for its performance and aerodynamic design. Throughout the work, various results were analyzed, including drag force, lift force, drag coefficient, moment coefficient, and front and rear lift coefficients. Additionally, the work pays special attention to pressure distribution results and streamlining force distribution. The results found that the electric car model being studied exhibits high aerodynamic efficiency, allowing for stable operation at both regular and highway speeds. Furthermore, the optimization in the design is shown to improve the car's grip on the road at the front and rear and optimize the side mirrors’ design, reducing drag, providing good visibility, and minimizing friction noise between the vehicle and the surrounding airflow.