Ride quality is very similar. Winters in downstate NY aren't that bad... snows maybe 5 times a season though last year was worse. I still didn't have any trouble driving through the few inches in these all season (Mud & Snow rated) Toyos. Not recommended for Canada year-round though.

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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