happy days to all, and please chime in if you know the answer.

I just bought an extra set of these 18" style 74 wheels for the wifes 03 X5 4.4. Since she drives a lot in the snow I decided to run a designated snow tire and went with the Hankook I Pikes because my kids love these in the Colo snow country. (just got over 16" inches of the white stuff last night). So I was going to use these wheels as a summer set and I got to thinking...

If I choose an all season tire for the S 74 wheels, maybe I will use these on my 4.6 as a winter set up because the big wide diamaris are not that safe in snow. I try to keep her out of really inclimate weather but sometimes you just don't know what kind of weather you might run into here in the rockies. So I believe the 18" wheels will fit the 4.6 (berely) but does anyone know if I will need spacers or other than other than the OEM lug nuts?

Thanks in advance for your thoughts!