Aerodynamic Design of cars is crucial as it directly affects the fuel
economy & stability in motion .Therefore it is necessary to have a clear
understanding of external aerodynamics of road vehicles which are nearer
to bluff bodies .Also wind resistance is amongst the three significant
factors (Efficiency of engine, weight & aerodynamic drag ), which
influence the fuel efficiency .Therefore needs a proper focus in the
early stage of design .Authors have tried to provide insight into Design
Process.