Matching Pairs Aerodynamics in sports - carsOnline version Links words to their image or definition by Cléa Claret 1 is caused by the “hole” left in the air as a vehicle passes through it. 2 Frontal pressure 3 Scoops, or positive pressure intakes 4 5 Turbulence 6 Rear vacuum Wing with endplates Wing without endplates are useful in providing a mild “Ram Air” or “Supercharging” effect to a combustion engine. is caused by the air attempting to flow around the front of the vehicle.