Blizzaks are the way to go (although there are lots of different models now) if you want good winter tires and still have some handling. I just put some on my wife's X3 after not using them after many years (e30 the second winter after I bought it) and am now kicking myself for putting something else on the X5!

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)