Originally Posted by swamp2
Those are not quite THE ONLY two explanations...
The other explanation, held by many, is the following. Despite some observed (observed by way of 1/4 mi traps) hp variations in early and production GT-Rs, production GT-Rs have about 530 hp. As well a monumental factory funded effort took place: On the observed ~7:30 lap times a combination of an ex F1 driver, near race sticky rubber and favorable track conditions, along with a very advanced drivetrain have produced some incredible times - even for 530 hp at this weight.
That's probably roughly what you meant but we have debated this so extesively here in other threads I felt it necessary to add this. Cheers.
sorry 530hp and 3800 is still not enough to do that...