I could be wrong, but I think the GR-1 IS dead. Ford has too many real challenges on its plate right now to expend energy on the GR-1.
I know-I know, that's what a lot of people (including me) were saying about the GT back in 2002, but Ford's financial situation has only gotten worse in the last three years. If you're looking to the GR-1 to drive down GT prices, you're going to be looking REALLY hard.
As for the GT, I figured my $160K was gone as soon as I bought the car (for MSRP), and don't plan on seeing it again. Two reasons for this:
1. Why the Hell would I ever sell it???
2. Why the Hell would I buy a car as an investment??????
The answer to number 2 seems painfully obvious. Yeah, certain muscle cars have gone up in value -- THIRTY YEARS after they were sold, but don't try to tell me some dolt back in 1970 bought a Hemi 'Cuda and kept it all 35 years knowing he could retire on the value in 2005. Most of those cars have changed hands several times. And if there is an original Hemi 'Cuda owner out there he's as shocked as the rest of us at what they are going for. He may be able to sell it now and retire, but he certainly didn't plan it that way.
So why all the enegry being expended on guessing about future GT values? The car is #&%*ing awesome! If you can get one for around MSRP you're getting a good deal...as long as you simply keep it, drive it, and revel in how amazing it is -- without any further thought to "making money" on the damn thing!
If you're remotely looking into a Ford GT as an investment item, you're stupid. If you don't believe me, check with every Viper, Prowler, SVT Mustang, GTO, Grand National, ZR-1 and Z06 owner on the planet who has stored them in bubble wrap with 6.8 miles on the odo. All of them wish they'd simply bought Microsoft stock instead of their car. And if all you want to do is check market value on your property every week, versus driving the hell out of it and having fun, I suggest you stick with stocks, too.