Quote:
Originally Posted by Frank Lee
I'd like to subscribe to that too, but the results skirts give are always such a disappointment; and then you have vehicles that attain very low Cd w/o them too.
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Why do you call the results disappointing ?
Most of the very high-milers (in absolute terms, not % over EPA) on EM, at least have rear-wheel skirts.
Once upon a time they were highly fashionable on cars.
Front wheel skirts are not that easy as DIY-items, and home-made installations usually aren't that clean and add to the frontal area.
Surely some cars have low Cd without skirts, but they still hover around the 0.25 mark where aero progress has stopped for production cars (see Hucho).
If manufacturers want to go below that, it'll have to take more aero measures, and even smaller improvements will have to be accepted.
But when they look at the market, they see their customers still wanting to buy huge tanks instead of cars ...