The blistering time is more than five seconds faster than that achieved by the 2011 GT-R (7:24.22) two years ago, and puts the Japanese supercar just shy of the lightweight rear-wheel drive Porsche 911 GT2 RS (7:18).
Other cars ahead of the 2013 Nissan GT-R include two Radicals (6:48 and 6:55), the Gumpert Apollo Sport (7:11.57), the Dodge Viper ACR (7:12.13), the Lexus LFA Nurburgring Edition (7:14.64) and the Donkervoort D8 RS (7:18.1).
Nissan says the GT-R is capable of going even quicker, too, with the car's creator claiming it lost half a second in traffic on the hot lap, potentially spoiling a 7:18.6 time.
While the 3.8-litre twin-turbocharged V6 engine's peak outputs are unchanged at 404kW of power and 628Nm of torque, a number of subtle upgrades to the powertrain and chassis have cut the 2013 GT-R's 0-100km/h sprint time by yet another tenth of a second to just 2.7secs.
Among the upgrades include new high-output injectors to improve mid-range and high-rpm response, a new relief valve for the turbocharger bypass to help sustain response, and a new oil pan baffle to help maintain more stable oil pressure and reduce rotational friction during high-performance driving.
The dampers, springs and front anti-roll bar have been retuned to lower the centre of gravity, while the updated GT-R also introduces cam bolts on the front suspension for improved camber accuracy and alignment.
Nissan has also added a new premium specification for the GT-R in various markets that includes semi-aniline leather and a customisation program, with carbon sports seats from Recaro among the options.
The upgraded Nissan GT-R is set to reach Australian showrooms in February 2013.
Watch the video of Nissan test driver Toshio Suzuki behind the wheel of the 2013 Nissan GT-R.