E-Class (W211) 2003-2009

SLR vs E class drag co-efficient

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Old 12-20-2004, 08:48 PM
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SLR vs E class drag co-efficient

MBUSA lists the E class drag coeff. as 0.27 whereas the SLR Mclaren is listed at 0.37. Doesn't that seem a bit strange?
Old 12-20-2004, 09:29 PM
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17 E220D, 11 E350 CDI(sold), 06 CLS320 CDI (sold), 05 Cadillac DeVille (gone), 04 E320 CDI (sold)
The E is very slippery, below 0.3 is good. The SLR probably has a higher DC because it needs to generate more downforce to improve cornering, and it has enough power to overcome the extra drag.
Old 12-20-2004, 10:29 PM
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plus, i believe the E is longer, which helps supposedly.
Old 12-20-2004, 10:32 PM
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but, isn't the SLR quite a bit lower?

which should help, i guess....
Old 12-21-2004, 12:23 AM
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Being lower helps with drag, not drag coefficient

Drag coefficient is normalized to the frontal area, therefore a car with half the frontal area needs half the drag just to stay even.

Jim

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