Notice at between 1:00 and 1:08 where the lap begins being timed... and where the lap stop's being timed. This is the 26,600 m NS lap time, and is not used by the major manufacturers when claiming a lap time.... not GM, BMW, Audi, Porsche, and supposedly not Sport Auto either.
The distance which is the true lap is 26,823 Meters, about 4-6 seconds longer then what is measured.
The lap is totally BALLS OUT.... but the timing is uncomparable to the 911 Turbo's 7:40, the C6 Z06's 7:43, the GT2's 7:32, etc. etc.