The link to the video doesn't mention a record and when this occurred and was announced back in June '08 nobody at GM called it a record setting run either other than it's the fastest 'Vette around the ring to date. However, I did get a chuckle at the video being "proof", like the event needs to be proven. It's a good vid though .
Sorry, I did not mean official record. I kind of put that in my own words. So far I think its the fastest production American car around the ring (I think), and its definitely the fastest production vette around the ring. Either way, awesome performance!