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      10-28-2012, 08:33 AM   #15
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Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

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Originally Posted by F30AM View Post
Sorry, that's not correct.

From the Car Configurator:

520d EfficientDynamics Cd = 0.27
520d, 530d, 535d Cd = 0.28
528i, 535i Cd = 0.29
550i Cd = 0.30

So it is a Petrol vs Diesel difference. Possibly due to a different and more aerodynamic engine undertray.
Which configurator are you using? I'm using BMW UK, and ALL the engines I quoted are the same drag factor on that site. I've just double checked what I was reading last evening and I confirm the models are listed as the same.

520d, 530d, 535d and 535i F11 M-sport Tourings. So NOT a petrol vs. diesel factor in this instance.

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