Quote:
Originally Posted by Phase
What’s the impact difference between tapering just the roofline versus tapering the sides too as a full boat tail? I noticed all the eco modders taper all directions for their boat tails. Makes sense. But what about if I just extended the roofline and didn’t do too much to the sides? Think Mercedes EQXX or the light year zero. The sides of the rear only have a super small taper that isn’t very noticible, the main thing is their rooflines going down and extending
How much CD drop would I see just be extending down my roofline while only lengthening out the sides like those cars?
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If you wanted to have straight sides, but get the benefit of tapered sides, you could perhaps create ducts that channel air inwards to a second wall. You could then have the air exit out into your wake to make it even smaller .
