I started my search for wheels and tires by researching what others had done previously. I found several X5's that I liked and then found the details of wheel size, tire size, and lift.

Then I compared each wheel to a BMW stock wheel in terms of offset. If the wheel in the photo stuck out or poked out more than the BMW stock 17" or 18" wheel, then I made a note of that as "poke".

I used the stock wheels/tires as 17x7.5 et 40 wheel with 235/65/17 tires and 18x8.5 et 48 wheel with 255/55/18 tires.

Here is what I found... (Note: The info here is the best that I could find, but I can't guarantee the accuracy because, well you know, its the internet)

Example 1
18x8 et 13 Hamann HM2 wheels
Hankook RF10 265/60/18 tires
Poke 33mm more than stock

Attached Images