Let me preface this by saying I'm in no way qualified to pick apart or speak to track driving.
With that disclaimer, at the 13 minute 10 sec mark of the video the GT500s backend lets loose ever so slightly. The Edmunds driver corrects with brake. That to me seems like something a rookie track star like myself would do - not a seasoned driver like one of the two Edmunds drivers who are presumably in control.
Two things about that moment in the video...
1) to those who are accomplished on the track am I being overly critical, or would the correction have been to simply let up slightly on the throttle?
2) can you completely disengage any traction control on the C8 or is there a hidden traction control feature that would will stabilize (in this case the GT500) even with traction control disabled?
Still waiting for my HTC... Third week Oct build.