http://www.bridgetogantry.com/video-...ound-the-ring/
For interest.
Chevy releasing that laptime makes it more likely that a 6th Gen Z/28 is on the way I think as although it's a couple of seconds quicker than the time they posted in the Gen5 Z/28 it's not much, and that Z/28 lap was done in damp conditions.
600bhp and 7mins 20 is my bet for a n/a Gen6 Z/28