I know one of them is High Plains Raceway. There are quite a few videos via google. 1:57.69
http://on.aol.com/video/2013-srt-vi...n-car-race-track-record-in-colorado-517834869
Unfortunately, that is not an official record recognized by HPR.
It is a claimed 'record' by SRT after renting the track for a day to run timed laps and produce a video.
Anything under 2:00 is really fast, specially in a production car with street tires and no mods at all.
So, that is awesome........but not a record.
A stock ZR1 ran around 1:55 at HPR. -no claim of any record.
I spoke with the track manager about this the weekend after the SRT guys were there.
He explained how they only have 2 record lap time categories. One for 4-wheels, and one for 2-wheels.
I think the current 4-wheel time is somewhere around 1;41 .......the 2-wheel time is slower than that.
This year they started running time trials on some lapping days, and may have some kind of leaderboard for posting times in different classes of vehicles.
I haven't been up there much this season so I haven't seen it.