Actually, I think I am wrong and 17" rims may well fit a car with 360mm brakes.
Ross-tech coding on the brakes section states:
3 = FNRG-60 16" (PR-1LG)
5 = 2FNR 42 AL 17" (PR-1LL/1LM)
6 = 2FNR 42 AL 18" (PR-1LJ/1LK)
7 = Brembo M6 AL 19" (PR-1LW)
I think the LL/LM are are the 360mm listed as 17" rims and LJ/LK are the 385mm listed as 18" rims with the LJ being the W12 and the LK being the S8 I think. The LW is the ceramic setup with the fixed calipers at 19" rims.
I think the LL and LM are the 4.2 V8 FSI and 4.2 V8 TDI and the LG must be the 3 litres with the smaller discs.
I guess the only way to find out for sure is to measure and try some on.