[VWCw]

This has been on a back burner in my mind for awhile (the thread is 4 1/2 years old now), of how to make a faux "crease" down the trailing edge of my sides. And then I found self-adhesive rubber door sweeps for about $3.00 in the weatherproofing section of the hardware store. The kind you put at the bottom of your (house) door to prevent drafts. The adhesive is pretty strong, and there would be about 3/4" of thin rubber sticking straight out from wherever attached, creating a sharp trailing edge for airflow separation, versus following the rounded side of the bumper and hatch. From earlier in the tread, it sounds like 15 degrees past the beginning of the curve would be ideal.