Ok the guy who saw the steeda did good. I just stole this from another site. He saw this on tuesday going home on the 5 freeway north of San Diego. Decals said "640 hp" and "Extreme".
It doesn't have 640!!! I bet it's a regular saleen 05 and this dude just put those wall decals on. I could do the same. Also saleen would never put 640 on their car.
That looks amazing. And whats even better is how good those pictures came out. I'd never be able to focus and hold the camera still to take a pic like that.
Gotta say that is the finest looking mustang I have seen in a long time. I too would remove the winshield sticker as well as the "640hp" though - even if it did have it.