[aerohead]

What Ford discovered with their research for the Probe-IV,was minimize the wheel house volume,then enclose the wheel inside it's own encapsulating steerable fender,which pushes against the deformable urethane outer wheelskirt.Their work is the most comprehensive attack on front wheel drag I've ever read about.It minimized the local drag and also protected all the surrounding flow.If I should ever find time to pursue it,it's the direction I'd go.basjoos articulated front skirts are a masterpiece in design elegance,and probably for the effort,the best value in performance.It's probably the future.