I just got my wife some Goodyear Ultra Grip 235/55/17 from tirerack. They are excellent in the snow and great in the dry. I have had Dunlops, Pirellis and Michelin snow tires on different vehicles and these are right up there with the best of them in every aspect at a lower cost.

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'06 Porsche Cayenne Turbo S
Marine Blue/Sand on 22"s
'02 Porsche 996TT Ruf 550 Rturbo
Guards Red/Black
'04 X3 2.5i
Black/Black(Wife's) on X5 20's
'07 BMW 328xi Coupe
Crimson Red/Black (Wife's)