How do you design your co2 car by aerodynamics?

To design a CO2 car with optimal aerodynamics, focus on a streamlined shape that reduces drag, such as a teardrop or wedge form. Minimize surface irregularities and ensure a smooth finish to help air flow over the car efficiently. Additionally, keep the car lightweight and low to the ground to enhance stability and reduce air resistance. Testing and refining the design in a wind tunnel can provide valuable insights for further improvements.