The 2011 Nissan GT-R SpecM was recently spied during tests on the Nurburgring and most of the exterior details are visible due to the fact that car barely wears any camouflage.
As you can see the 2011 Nissan GT-R SpecM features the ‘traditional’ elements carried from the specV model, plus the new exhaust pipes, and of-curse the slightly redesigned front fascia.
As far as performance upgrades there is no official data at this point that would mention a power increase, but the 2011 Nissan GT-R SpecM is expected to be offered with a re-tuned suspension and numerous improvements at the interior. 
The 2011 Nissan GT-R SpecM is expected to have its public debut at the 2010 Tokyo Motor Show. 
Watch the 2011 Nissan GT-R SpecM spy video after the jump.

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2011 Nissan GT-R SpecM spy video :

Source: YouTube