Before I read your words, I was thinking exactly the same thing: I wouldn't modify a hi-perf new Mustang. They're already awesome! I have driven a manual transmission GT and really liked it. I'd love to drive a Shelby! How 'bout them new glass roofs available next year... you seen them?
Have not heard anything about glass roofs? That's what the concept version had. With car sales at an all-time worst in 15 years according to the news, it might be an expensive risk?