I've used the DWSs for the last 3 E46s, absolutely great dry & wet tire. However, they aren't so good in the snow. I'm in DC and we get that wet thick mess, not a fluffy snow. About all they were good for was to get you home and wait for the roads to be plowed the next day.

And then there's tire wear, since you can't rotate the 135s the rear tires are going to eat quickly. Had to replace one rear at 7K miles due to a nail so did both rear tires and on the one I good one saved, half the tread was gone. That was on the coupe, the conv has more miles (9K) on the same tire and is still 2/3rd's tread.