Originally Posted by pbonsalb
They are not as good as a jiggly hardcore Blizzak WS70, but you would hate the WS70 on the M3 even if you could get a size that fits. I run 3D in 235/255 18s on my 08M3 in NH and they are OK although I will concede the car is not as good in the snow as 16 inch WS70 would be on a 330i. Maybe the OP's snows are overinflated for snow use.
Good thought. What pressure do you run your tires?