Hi hope this post find you all well. Basically looking to get some A6 17 inch Competition alloys (Same as TT Competition Alloys) But I am pretty sure there were a handful made for the A6 that were PCD 112....for the 4.2 version not S6. The standard 17 tyre size i have seen on a A4 B7 is 235 45 17.....but the A6 comes with 255 40 17. Would this tyre size be ok for the audi B7? Much appreciated?