Originally Posted by mainly
i only tried with stock tires after a snowfall, absolute nightmare. you could probably get by with winter tires, as long as you dont get any more than 3-4 inches of snow.
i just said screw it, parked the M5 and got an X5.
I drove my e60(s) in brutal storms and it was fine - you just need really good winter rubber. Any performance stock rubber (even my 4S) is going to be horrible in ice/snow.