http://m.youtube.com/watch?v=cQFRnUx7srM
To me it looks like the LS1 GTS basically hit the brakes towards the end part of the lap, it was away. no way the GTS LSA would make up that time. I'd believe the v8 super car making it up due to its setup.
It's a dodgy comparison, the V8 super car reeled in the GTS LSA early on but for the second half of the track barely just pips it.
The LS1 GTS was miles away and then all of a sudden the GTS LSA is all over it... Lol