[lunarhighway]

after looking at it in available photo's on line, i can't really see how they should help aero, they even appear to be lower in some pictures, making me wonder if the "ridge" look doesn't come from a reflection.

also the picture shows a break in the smooth line of the bodywork in front of the window as if they're delibirately trying to make the flow sepparate ahead of the windshield.