Does anyone know the sizes and offset of the standard rims? Also how much would a set sell for?

Thanks

All the 5-spokes have a 5x112mm bolt pattern and 45mm offset. Well, except the A8 17-inchers, which have 48mm offset and I've heard are forged. I don't know how much the factory wheels are, but TireRack has ATP look-alikes: $109 for 15-inch and I believe $129? for the 16's.

I forget the widths. They might 7.5"?