Not sure any comments now will help the OP make up his/her decision on getting the Conti's but at least these comments will help new viewers of this thread. Anyway, I just had the Wintercontact SI's mounted on the wife's Q5 2 weeks ago. First impressions, wow, these tires are soft - even mounted on 19s (mounted 235/55R19's on my S4's stock peelers)! They do tend to squirm around a bit especially in a slalom like turning movement, even at a mere 30-50 km/h (~20-35 mph). Road noise is also quite a bit louder compared to the Hankook i-cept evo's I have on my S4. However, the Wintercontact SI's are much better than my i-cept evo's when it comes to the white stuff. Haven't had any experiences on black ice just yet though. I've also owned studded Nokian Hak's and Hankook iPike's in the past, as well as having driven on pretty much all the major tires out there (Bridgestone Blizzak's, Mich X-ice's, Toyo Observe's etc). In terms of dry-pavement handling, by far my i-cept evo's have been the best but you're paying a premium for them. But as a true winter/ice tire, I'd rank the Conti's right up near the top, except maybe the studded Hak's for icy conditions but that's an unfair comparison simply due to the studs. Hak's are also VERY squirmy handling-wise in my opinion. I also spent the better part of about 2 hours 'studying' the tread on each of the major winters (only 'cause a cousin owns a tire shop) and overall best of all worlds, I would still pick the SI's over the other tires.
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