With just 11 examples built, this 911 will probably go for millions.
Mecum's Monterey auction is in August and a very special car is set to be sold there. The car is a 1995 Porsche 911 GT2 Evo. Only 11 Evo versions of the GT2 were built, making it extremely rare. Porsche built the Evo to race in the GT1 racing category, but it was quickly replaced with the purpose-built 911 GT1 in order to compete against the McLaren F1 GTR, which also came out in 1995. Just because it didn't have much racing success doesn't mean that this GT2 isn't absolutely awesome.
The 3.6-liter twin-turbo flat-six from the GT2 has been increased by 150 horsepower for a total of 600 hp. This particular example has only had one owner who only put 4,350 miles on it. Since this 911 is not street-legal, we can only assume that all of those miles were "done on the race track" where the car belongs. This might be one of the best 911s in history, so we would sell everything we have just for the chance to own it. That being said we would probably still be a few millions short of its asking price.