I just drove my 2009 EX V8 through the Sierra last weekend. We went from Las Vegas to Mammoth Lakes for a couple days of skiing, then from Mammoth Lakes to Sacramento via Lake Tahoe, then back to Seattle. In all, we drove like about 100 miles on snow and ice without chains and with stock Hankook tires, both around town in Mammoth Lakes and on highway (395). The car went up the hill, went down the hill, made tight turns, stops etc... without much problem. Of cource I read about the problems with the stock tires on snow, and I did experienced some sliding with these tires last year. So I was a little more careful with the car this time around, going a little slower, made sure that I took it easy on braking, turning etc... But I did not have any problem on snow and probably some ice with the car on the stock tires at all. From about 6 miles to Mammoth Lakes when most cars stopped and put chains on, we just went without them. I planned to put the chains on if I felt any loss of traction. But I did not have any problem, either on plowed highway, or in less plowed city roads. We even saw a one Toyota van slid off the road and one sedan landed on a snow bank along the road. But my Borrego was just solid. Still I went off the snow covered 395 back to the more reliable I-5 as soon as possible. But if I had to, I would not hesitate to go on snow covered roads with my Borrego.