Ok...I have been told by both the Polizei and MP (Military Police) Officers that All-Season Radial tires are the minimum requirement for snow. The Polizei have told me that winter/snow tires are by far the best, but ASR tires are acceptable and my auto insurance at USAA state that ASR tires are fine. Both law enforcement officials did tell me though that summer/performance tires are illegal during winter and fines will be administered to violaters and if an accident did transpire, auto insurance may not cover your damages and if the Polizei DO SEE YOU driving by with performance/summer tires, they WILL pull your ass over and ticket you. MP's are a little more leniant, though. And all Americans in Germany know that the Polizei are more leniant on Americans for our gas guzzlers, driving techniques, window tint etc., etc. (The Polizei are RUTHLESS on their OWN people...LOL!)