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Old 11-01-2022, 07:39 AM   #1 (permalink)
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Why Cd vary so much within same models of car?

CLA C117 drag coefficients vary from 0.22 to the 0.30, depend on model/engine/equpiment.
Is is possible that Cd vary so much just for tiny differences at each model if car outline/siluetthe is the same?

I allways thought that you must completly change car body shape to jump from 0.22 to 0.30

CLA front and rear axle lift at 70mph is 46 and 44 pounds, that mean lift is 4 times bigger at 140mph, overall 360pounds(163kg)!

Can car produce so much lift or this is normal values for cars?

I cant post links so google this :
Five slippery cars enter a wind tunnel - Tesla

Last edited by AEOLUS; 11-01-2022 at 01:04 PM..
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