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I’d wager most cars don’t really leave the major metro areas. Aero has its place, but it’s not foremost for utility.
A highway vehicle averages 40-mph or better. I’d bet most car owners are at 25-mph.
For all the yakkity-yak about aero mods & stunt driving, charting average mph is first on the list. Other than this isn’t serious for FE improvements.
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