Im thinking about trading in my car for one of these two. Im looking for something with better milage that would be the ST or more practical in the SHO. I love the mustang but think a change might be in order. I don't owe anything on my car. I would likely by either car used. I would tune either car and might do exhaust but thats about it. just wanted to see if anyone has owed or driven either car much to see what you think.