Although there certainly is video proof of the GT-R lapping the ring at these extraordinary rates, I'm still slightly skeptical. There is no mention of which trim-level model it is, and while tires appear to be stock, I would be curious to see if they what is offered stock. Its still a wonderful lap time, one that I'm sure Chevrolet and Dodge engineers would be happy to tackle with their updated machines... Furthermore, Porsche with the GT2.
I was reading an interesting column on the GT-R today which asked the question "Will the GT-R matter when it debuts in the US?" The question seemed a bit unfair at first, but he often speaks of this subject with a wide range of vehicles (the Camaro and Challenger have had similar fates), so I take it with a grain of salt on average. But what he was saying did make sense; With all of this fanfare on Magazine Covers and headlines on Websites, people tend to forget that we won't see the GT-R in the United States until Summer 2008, his assertion being that with quite a few more updated versions of other cars in the segments coming, that it won't mean as much when it gets here.
He has a point, but I don't think hes completely right either. Oh well, people probably have them bought-up on the initial run for 2008, but after that, we'll see...