Quote:
Originally Posted by MetroMPG
Determining your actual Crr experimentally and entering it would be best.
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Ah! Found one. Point of reference:
IWillTry did just that with his '92 Metro with 145/r12 (I think) tires inflated to 45 psi:
Crr = .0106
See his instructable:
Measure the drag coefficient of your car