Necessity and Premises for Reducing the Aerodynamic Drag of Future Passenger Cars 810185
Among the ways to reduce the resistance to motion and, in turn, improve fuel economy for future mass-produced passenger cars, the reduction of aerodynamic drag is the most promising. It is shown that drag reductions of 2 5 % to 35 % are achievable in future mass-produced passenger cars. This indicates that aerodynamics alone can provide a 10 % to 15 % fuel economy improvement in future passenger cars. The development procedures, and the shape and design characteristics which lead to such mentioned drag reductions are described and analyzed in some detail.