Would these Q3 wheels fit D3 A8?
 

http://www.ebay.co.uk/itm/GENUINE-AU...item27e035df69

Not that I'm willing to pay that much ;) That tyre size was available as standard in 2006 brochure.

7.0J ET43

Doesn't sound right, pretty sure you should be looking at 8 or 8.5J for a standard A8 fitting.

Yep, standard ET starts from 45 if I remember right.
As for wheels, don't know whats the J and ET on 17s, but standard 18s are ET45, 8.5J and 255/45 tyre

Can't see why they would not fit. PCD is the same 112mm, centre bore might be bigger at 66.1mm instead of 57.1mm but you can use spigot rings. And it will be harder to kerb them as they are narrower tyre will hit the kerb first.

Thanks for the replies guys.

235/50/18 was a standard tyre size too, but it was indeed on 8J rim, not 7J.

it depends on what size your existing wheels are how much the difference would be but as an example vs a standard 18" QS wheel -

http://forum.a8parts.co.uk/attachmen...1&d=1394528325

As you can see the only difference would be the thin-ness of the wheel meaning that to get the wheel to line up with where you want it on the face you may have to fit spacers. . .