It looks like an interesting idea with the potential for some smallish, but
always welcomed, FE increase. I think I've read that wheel skirts may be good
for ~0.01 Cd decrease. But what the heck, you're way ahead of the FE game
for a pick up already. "Nothing ventured, nothing won."
I'm wondering if there would be any aero advantage to having th lower edge
aft of the wheel raise up to the bumper and rolling the skirt under the
bodywork..
FWIW, great thread/write up on your mods at ToyotaNation.