Went to Dragwars here kast night for the first time in the RS6. Temp. was about 75F. Track is not the best I've seen.
So after 6 runs this is the best I could do with ESP off and riding brake at 2000rrpm.
R/T .379
60' 2.063
1/8th 8.780 @ 131.25 kmh
1/4 13.457 @ 169 kmh
So with more practise and a better reaction time I think 13.1 / 13.2 is possible.
I don't know how you would get into the 12's like I've read with a standard RS6.
I'm Revo'd, Remus, and BMC filters and use BP Ultimate 98
If I go again I'll try manual shiftng in 'S' mode at 5800-6000 rpm instead of redline and see what happens.