Everyone here has made there own. You'll need to locate some 4mm coroplast or some other sturdy lightweight material. Coroplast can be found at sign makers or suppliers. I bought mine from a plastic supplier for $12 a sheet. You can grab election signs after an election for free. My framing is made from junk aluminum strips. There are construction pics in my sig.
02 Saturn SL
for pics click the link below
(I hope to make a set this spring. Five to seven angle brackets screwed to the inner edge of wheel well. Flat panel screwed to brackets. That way it will look OK if/when I take them off later. Panel screws will have to come out for tire changes.)
Currently getting +/- 50 mpg in fall weather. EPA is 31/39 so not too shabby. WAI, fuel cutoff switch, full belly pan, smooth wheel covers.
I remember the older luxury cars had the rear skirts...stopped to help someone who had a flat tire change their tire fer them. Didn't know how to take the skirt off at first but figured it out pretty quick...there was a lever action that unlocked it on the inside and towards the bottom. Maybe that same tech could be used fer yer rear skirts...make a mechanism to hook up on top and lock on the bottom.
After doing a search...looks like my memory is going bad...guess that's what happens with you git old...er.
Looks like it hooked on the bottom and and the locking arm wedged the top in place.
I think I would end up using a fastener kinda like what you would find on a tool box or yer airbox...the wire hasp type. I would put them on the inside of the rear skirt though so it would be clean out the outside.
Not sure what they are called...but they would make fer easy removal and access!