Anyone running these? It looks like my rear wheel drive 530i will have to see some winter driving so I was considering these. They seem to get pretty good reviews on tire rack and the price is right. I can't "stud" them where I live but I also don't expect to put a lot of miles on them (2k at most). I'm also considering going to a slight narrower tire too, 215/60/16 instead of 225/55/16. Speedo will be slightly off I know. 61 mph when the speedo reads 60. Thanks.