Only 4 car lengths? A "friend" also had a run in with an NA1 6psi CTSC/DC headers/Tubi/standard gearing against what I assume was a stock C6-Z06 from about 110km/h to about 220km/h. Both cars were in the same lane, with the Z06 in front, and by the end the Z06 was a lot further ahead than 6 car lengths...
It's a very humbling experience, even when you know you're going to get crushed!
I'd bet anything that the next "NSX" will run circles around the C6 Z06... Once again, C6 and NSX = apples and oranges.
There is a video of a CTSC NSX smoking that new Caddilac with a Vette motor in it (Forgot the name) on YouTube... Yay!