Having looked at Fastestlaps website and the times for past Audis it does look possible this 8:09. The TTS did 8:29 but the older S3 did 8:41, I know that does sound like a big gap but as there's no latest S3 time I looked at the Golf R for reference and it's quicker by 6 seconds. Similar car the S3 so it's fair to expect a similar time from the S3, I am also aware this was a factory time but how much slower would expect other professional drivers to be, the likes of the ones used by Sportauto.
Take the same 20 seconds off that time and you end up with 8:03, 6 or so seconds sounds reasonable. What do you think?