Realistically - low 7:30's
Hopefully - mid to high 7:20's
I don't see it out beating some of the cars on that list....
Beating the Mclaren MP4-12C on that track, and the Lamborghini Aventador?
I am hopeful for the Z/28's performance but the highest car with similar weight/power as the Z/28 is the Nissan GT-R.... That is a tall order as the GT-R put down a smoking time on the ring...
Another with similar weight is the Lamborghini Aventador... But beating that?

Guess we will just have to wait and see.