The York, Pa, plant flaired out the bottom of the fenders so it would be easier for them to install the nuts on the trim piece without getting their fingers dirty against the tire.
So that when you add this terrific custom fender, it does a better job reflecting the view of all the scuzz/rust on the inside of your lower engine guard mounts.
Designer dropped the prototype, one corner bent....under the gun to get design out, he quickly whacked out the other side to match, primed and shot with candy. Tadaaaaa