I see this as a moving collection of variable conditions which may or may not average out. Then there is the "laminar" body.......what part of this body is laminar and how much of the turbulent aft is going to affect data since I have yet to see any shape 100% laminar. I can see a very low drag shape getting consistent data but that is the limit, I believe. I also envision the reynolds number wandering around since race tracks have straight-a-ways to go fast on and tight turns to slow on which will affect the turbulence unless you pick a slow enough speed as to not accelerate or brake.
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