Here are some spy pics of two Nissan GT-R production mules doing some testing on the Nurburgring circuit in Germany.
The prototypes appears to be a Spec V specified GT-R while the other is the vanilla model. Both cars are very similar including the reshaped upper grille.
With the camo covering the bumpers and the air intakes gives the GT-R a more aggressive look we also expect that some suspension and some slight modification of the powertrain.
The new GT-R is expected to debut later in the year at the Paris Motorshow.