|Extra slots for cooling? I'll call it da Smurf.|
The Smurf, or car rendering above might be an indication of the refresh for 2014 in the US. They are also expecting some powerplant upgrades. Sam has a pretty good line on whats going on at Nissan, so you can bank on the info.
Originally, the second generation of the GT-R was scheduled to arrive in 2015. Part of the reason for the delay is that the chief engineer and product specialist of the GT-R, Kazutoshi Mizuno had left the company. We now know that Mizuno took a leave of absence because of health problems, but has since returned to the company. He is again at the helm of the GT-R's development team, and was involved with the GT-R's recent class-winning effort at the 24 Hours of Nürburgring.
Source: Inside Line