Here ya go:
On Buttonwillow Raceway, Road & Track were able to achieve lap times that were approximately 5 seconds faster than a Chevrolet Corvette Z06 and Porsche 911 Turbo with the GT-R. The GT-R currently holds a lap time of 1:19.7 around the Top Gear Test Track, which is the 8th fastest time (equal with the Ferrari F430 Scuderia)