Laurie, you could be right, but I'd have to say that during transporting of those cars, you wouldn't have the Arizona weather. Go to your nearest new car lot and look at the suspensions on those cars. Especially the brake rotors. NIce question though..
True, if the cars were coming from Dearborn or New Jersey. But, it's a short trip from San Jose and good weather most of the time. I would think that most of the Mustangs sold out of the Phoenix DSO came from San Jose, once they started building them there. At least my fastback was.