Okay, if you haven't heard, Chicago was dumped with about 12" of snow yesterday. My tires REALLY REALLY suck in these conditions. I have an 85 635 with 15" rims carrying Goodyear Eagle HPs and a 90 535 with 15" rims carrying Pirrelli Vizzolas. Both are daily drivers. Definetely the wrong tires for this weather. Any suggestions on new tires would be greatly appreciated.