I feel your pain. I ordered a DH 5/27 and no build no window sticker was ever received. I received an order confirmation email and actually called Ford as recently as late Feb to confirm order was still pending. I ended up canceling the DH order and on 3/7 I purchased a grabber blue GT, with...
Maybe I'm mistaken, but I do not recall the GT being promoted as track ready. As best I can recall, I only saw Dark Horse variants advertised as track ready. I think Dub called it right. If you want to track your car, go with the Dark Horse or plan to spend on mods.