Up here in Canada, Winter tires are pretty much mandatory past October 31st, and it's law in Québec.
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1994 530i 5 speed - RIP due to a dipshit that can't do overshoulder checks and ran over the front end with his Jeep!

1989 325i - RIP due to a knucklehead that rammed the car in the butt doing 50 km/hr while I was stopped at a intersection!!
New ride: 1998 318i