Let me jump in here, since I'm the person that started this discussion with my thread.......
My Mach was an '04 Azure with an automatic & IUP. They made 280 of those automatic cars, and only roughly 75% of that amount had the the IUP package. I took the car to 5 shows this summer, and have 4 awards to prove it. It is indeed a rare car, which means alot IF you're gonna do 2 things:
1) Leave it factory stock
2) Keep it for 20 years
To say that a Mach is a limited production car is right, but that you see GTs everywhere you look though is inaccurate. Right now, you can't find the new GTs unless you order one, or luck into buying one on a lot, and even then most of them are marked up way above sticker. You can find Machs (such as my former) advertised all over the place. Why? Because the new car is so much more superior in everyway. There is no comparison. I love Mach 1s and have the utmost respect for them and their owners, but you're comparing apples to oranges.
My advice? Keep your Mach if you like it that much, and don't test drive a new GT.......... you may very well change your mind and make the decision that I did.
Thanks,
tom281