It’s always interesting to see what the guys who make and sell speed parts will build to show off their wares. Heck, that’s the appeal of the SEMA show in a nutshell. So we’re intrigued by this new 2013 Mustang project from Ford Racing, despite its unfortunate color, “Gotta Have It Green,” a hue that doesn’t exist in the natural world. (Outside of 1980’s album covers, that is.) Funk Flex