I read somewhere that Cosworth are supposed to be tuning the new skyline when it arrives. Only decent bit about it I could find just now is on Wikipedia.
Originally Posted by Wikipedia
It has long been known that Cosworth has been contracted out to do engine development, which suggests the new motor will be just as durable and strong as the RB series it will be replacing. The drivetrain configuration will most likely remain All Wheel Drive, in keeping with the GT-R's longtime theme of technological superiority. Additionally, Lotus has been contracted out to assist with suspension and handling development, ensuring that the GT-R will regain the unofficial position of fastest road-legal car aroung the famed Nurburgring circuit - a title it had held for a number of years until its record was beat by a Porsche 996 in 2005.
Check out the section titled "Future of the GT-R"
here
EDIT:
Found a better bit -
http://www.caranddriver.com/carnews/...line-gt-r.html
Originally Posted by Wikipedia
Britain’s Cosworth is helping Nissan extract more than 450 horsepower from the upcoming 3.7- or 3.8-liter V-6 while still meeting emissions laws.