Hey man, don't give up on an Infinti GT-R yet. I've heard rumors of an Infiniti G35 GT-R. It's rumored to have a 3.5, 4.0, or 4.5 V8. I don't know if it will have all whell drive though, but if Nissan/Infiniti decides to make a G35 GT-R, they better make it all wheel drive.
You can go on
www.Google.com and type in G35 GT-R and you will find little info, but it is there as well as the concept version of it. All I've been able to find on it is that it has a V8.