I'm looking at finally upgrading the wheels next, as I have the rest of the car basically the way I want it. I'm looking at getting the 3-layer 5-star RS6 wheels and Hartmann's carries them in 19x8.5 with both +25 & +38 offsets. Being my stock are 43 offset, I'd imagine the +38 is best for me?

Now, my question is, does anybody have 19's on a C5 Pre-face A6 2.7L? Do you have ANY problems with them (rubbing, etc.)? Did you have to mod anything at all or will 19x8.5 fit well with stock wells, suspension, etc?

Also, with our larger front rotors & calipers, what is my best tire size I should be looking at? 235/40 19, 235/35 19?

Or should I just stick with 18s? Again, tire sizes w/ no problems?

Thanks in advance, guys