I have been searching through prior posts about what other Audi (year and model) OEM rims will fit my 2001 A6 2.7T. I want a set of extra wheels and prefer to move up to 17's if possible. I know the big front calipers limit my choices. I measured the 16x7 OEM spare and it looks like about 32mm for offset and measured my son's 2000 S4 2.7T and his looks to be about 38mm. Could be off a few mm's. Most posts show 45mm as offset for 2001 A6 2.7. Is this correct and I am way off on my measurements? Also, I see that there are some references to 2001 Allroad 17's fitting 2001 A6. Thought Allroad is around 20mm from some googling. Last, I looked at Tire Rack and they seem to be so generic in their offsets that I don't find them useful for OEM wheels.
Really appreciate if someone can advise which model, year, etc Audi OEM wheels would work on my car besides the present ones (16) and 17's. Thanks so much!

 

I believe that the A6 offset is 35mm and the S4 is 42mm. It isn't the offset that is the problem, it is the caliper clearance