Wow! A Carerra GT did it in 20 seconds faster. That's a huge difference. I hope he drove in rain, traffic, and with a flat tire when it ran 7:52. A Murcielago has less hp (it's rated at more, but those cars are overrated and the GT is underrated), 400lbs heavier, and more of a tourer than a true sports car like the GT.
We need someone to really put the GT through the ring(er) and see what it will do.