Guys,
I just ordered an SQ5 and also need to fit winter tyres. My preference was to use 19" rims, my new car won't turn up till September.
I took a chance on a secondhand set of 19" Audi alloys that came off a S-Line car - these were ÂŁ800 from an eBay Trader. The Audi dealer who I ordered my SQ5 from let me try one of the 19" alloys on the front hub of their demo SQ5. It just fitted giving about 4 to 5mm clearance on the rather large front brake callipers. On a jack with the car in neutral we were able to rotate the alloy with two of the bolts nipped up.
This wheel has an offset of ET39 and is a 19" x 8J. Audi part number is:
8R0601025L1H7
The 20" standard wheel has an offset of ET33 but is 8.5J, 0.5" equates to about 12mm, dividing by two gives 6mm. So this 19" Alloy is in the same position relative to the 20" wheel but will be 6mm further inside the wheel arch with the 235/55 R19 tyres. I don't know if there would be issues with fitting 6mm spacers, other than there my be difficulties centering the wheel on the hub with a slim spacer that is not hub centric.
I don't know if all Audi Q5 Alloys 19" wheels would fit, the amount of clearance between the brake calliper and this alloy was small, I would try first if possible. It will probably be down to whether the internal profile of the alloy gives sufficient clearance to the brake calliper.
Audi Germany lists a 19" Alloy as a winter wheel for the SQ5, there's also a 20" option too. Interesting the 19" is a 7J wheel but the same 235/55 R19 tyre is suggested in the brochure.
The cheapest decent winter tyres I found were Vredesteins at ÂŁ156 a corner at love tyres:
http://lovetyres.com...9/season/Winter
They were shipped next day delivery and turned up as advised at 4pm. So good price and good service from Love Tyres.
I used to run Vredesteins on my BMW X3 and they worked very well, i'd like to hear if anyone has had success with the cheaper brands of winter tyres in snow and ice.
Hope this post helps in deciding whether to use 19" or 20" for winter tyres.