I STRONGLY recommend a set of Michelin Arctic Alpins for this kind of weather. I just put a set on my 300E and they perform miracles!! 124s are especially bad in foul weather, but these tires are great, and the ride is not even noticeable from all season tires! Actually, it's a tad bit softer because of the thinner sidewalls, but the handling is wonderful. I recommend them to everyone who comes into the shop and so far I have had almost 15 people bring me a set to mount and balance and not one complaint yet! Blizzaks don't ride as good as the Michelins do, and their sidewalls tend to be weak, so I'd stick with the Alpins. Hope this helps!
Precision Motorcars, Cincinnati, Ohio
'67 250SE Cabriolet
'79 6.9 (SOLD)
'93 300E 2.8