larryV

I'm wondering if the 20" are at least the same offset and width as the Q5 S-line 20" and if the 21" are even more aggressive.

My car isn't here yet but already wheel shopping for a winter set

spijun

https://www.audiworld.com/forums/sho....php?t=2851996

MP4.2+6.0

Per the other reply, you can track that through. At 8 1/2 w 255's, it's going to be ET33 as indicated, and whether 20's or 21's apparently.

Stepping back, I'm not entirely sure where you are going w/ the reference to winter set ups. If you mean winter, a fair number would go narrower on the tread, which in turn could mean "retreating" to a narrower wheel. See the prior response from spijun and his linked thread for details there. On an SQ w/ the bigger brakes, an easy one might be just getting a set of 19" OE Q5 wheels (8" width) and then your choice of tire sizing--widths and corresponding aspect ratio.

Instead, maybe actually mean the reverse relative to non-winter use for new wheels--more aggressive than the "usual" Q or SQ set up, or you may go down that path once realizing SQ and Q offsets are all the same in OE. In this scenario of looking at more aggressive offsets, besides aftermarket you could look at RS5 OE wheels--or aftermarket counterparts with ET's calibrated to the RS5. Those are 9" in OE and then w/ the offsets to match. Having looked, those will be more aggressive than the ones connected to the C or D platforms (A/S 6 and 7, A/S 8's, etc.). Q5's actually already have "aggressive" offsets by Audi standards, probably as part of how they generally grew the vehicle some from its A4/5 underpinnings and w/ the SUV look, fenders, etc. I haven't poked enough at the current (A4 based) allroad options, but if it's like the old C5/A6 based allroad, the fender flaring/cladding also let them use more aggressive offsets than generally found on that platform.

Last, back on winter wheels specifically, in the offset arena if you are concerned about crap down the side of the vehicle--which in turn can abrade the paint some around the wheel wells from the road sand over the years --you might actually want to reduce the offset some. That is, not push the wheels out so far relative to the wheel well. Or, use the narrower tire options for winter on a given OE wheel, which will also pull in the outside of the tire tread some compared to the wheel well. I realize, not the "performance" look, but it is the more practical for road grime, road spray, etc. Alternatively, if using spacers, you can at least pull them for winter wheels/set ups. Having the old C5 4.2 with the RS6 style factory wheel flares and more aggressive ET's, there is a downside to that set up as far as the road grime and long term effects on paint. 13 years and hundreds of Tahoe trips of experience, though I was seeing it even in the first year or two. Audi actually had already installed some factory film on the leading edges of the fenders to try to combat it some.

Gossip Girl

Wow that's quite the list of vehicles you have. NICE!