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But why don't they agree? Barometric pressure? Or are the other variables not able to be controlled well enough?
I don't know how wind tunnel calculations work. But it seems to me that the same car should produce the same results given the same conditions, given the same car either the conditions are different or the measurements are off. Presumably positioning the car fractions of a degree off head on might make a difference.
Am I overthinking this or is it just random variation?
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