I just purchased the new Bridgestone MZ01 Blizzaka for my 1999 328i with Sport Wheels. I mounted them on the stock sport wheel. The tires are ok on local roads when speeds are generally below 40 mph. However on the highway they are absolutely horrible. Personally I didn't expect the performance to degrade that much. The tires are so soft that responce to steering imput is greatly reduced. Any sudden turn on the highway makes the car feel very loose. Fortunately I won't have them on all the time because I bought other rims too. I definately would not recommend mounting them and riding them for the whole winter. Definately only good for short time period. I havn't had the opportunity to try them in the snow yet but I'll post when I do.