Didn't know that.
http://content.usatoday.com/communities/driveon/post/2010/09/ford-adds-f-150-raptor-to-its-body-graphics-list/1Sep 13, 2010
Ford adds F-150 Raptor to its body graphics list
<snip>The matte-black graphic, for instance, is inspired by racing hoods in which the paint reduced glare.
"When I started looking at off-road racing history for inspiration, I noticed that a lot of Ford Broncos from the 1970s were running matte black hoods to reduce the glare," said Bruce Williams, F-150 SVT Raptor designer. "So it's a protective graphic that has a functional benefit and ties in with our racing heritage."