The summer performance tires are notorious for being bad in the snow, but what if all-season 20s are used instead? Tirerack has the michelin latitude tours which are rated pretty good even in light snow. Is there any reason the staggered/wide 20s will have problems regardless of the tires used? I'm sure it's not as good as regular 18s but I'd like to hear experiences with the all-season 20s in the snow.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr