Originally Posted by +fireamx

Do the side skirts extend beyond the side wall of the tires? I mean if you're looking at the car from behind, can you see the side skirts sticking out (like running boards)? Or would it take spacers on the rear wheels to hide them?
Do they actually perform any function other than make the car look lower and "Thicker" than it already is?
I thought they were originally designed to make the car more aerodynamic when used in conjuction with a very low front "air dam".