I did 8.46 BTG on the 20th october.
My S3 is standard except for Milltek TBE, HPP gen2, H&R springs, H&R anti-roll bars, EBC redstuff and dieselgeek short shifter.
Probably no more that 270-280 BHPs
I have a total experience of 14 laps at the ring.
I reckon that someone who really knows...