Quote:
Originally Posted by tasdrouille
Skin friction in itself is less than 20% of total drag in road vehicles.
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Golf ball dimples increase skin friction, so your point is pretty pointless. what they do is create small disturbances in the flow that keep the boundary layer attached to the surface for a longer way around the ball. this reduces the size of the wake behind the ball and therefore reduces the overall pressure drag. this is very important to the aerodynamics of a car, which is why the aerocivic gets such great gas mileage. that said, i don't know if these fast skinz would work. it would depend partly on what the flow over the car is (laminar vs. turbulent) and another part of black magic and make believe.