Well, I don't have the best photoshop skills. I've mostly just done some creative filtering or pixel art for video games. This is the result of about 5 minutes, so don't be too judgmental.
But, here's a rudimentary design idea I had for the ST.
... very rudimentary. But, you get the basic idea. I'm sure I could do better if I got my graphics tablet out. But it's just not worth the hassle right now lol. Maybe Ford will have some stripes from the factory.
Anyway, what I'm thinking is race red with black racing stripes, and an outline of the side molding. Similar to what's offered on the Mustang.