Thanks ard, as always. However, how do I find the rim width? is it written somewhere in the vehicle, on rim? my SA don't know about it, and he hasn't got an answer from the services guy either.

So I am like either go get 20" rims and put Conti DWS on them, or use the same 19" stock I currently got on them and get the wider tires, which I believe would be far cheaper solution.

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2008 Alpine White X5 3.0si
AG Sports Package
Premium Package
Technology Package
Winter Package
Comfort Access