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Old 09-22-2011, 05:01 PM   #99 (permalink)
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Quote:
Originally Posted by NeilBlanchard View Post
Remember that the top of the wheel is moving forward at 2X the speed of the car, relative to the ground. Even with the partial skirts on the Probe, the one tuft looks like it is getting "sucked in" to the churning air flow around the wheel; even with smooth wheel covers.

I think if cars are going to have any chance of achieving a Cd >0.2 I think they need to have wheel skirts. This is definitely "worth" going after, in my opinion.

Then again, here's a rebodied Lotus with no skirts at all that managed Cd 0.2 and 135 mpg (hmmm...Imperial?)
File:Opel ECO Speedster with 1.3 CDTI-worldrecord-Diesel.jpg - Wikipedia, the free encyclopedia
I'm showing the "honest" version without the show wheels.
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