Thanks for the story HuskyFargo, I agree for normal snowy driving, decent snowflake tires are sufficient and fitted to the LR3, more capable than many. But for my snowy back roads access, logging road inclines and declines, often with previous traffic icing the road surface nicely I think I've decided that chains are a key tool to have available. Studded tires was also mentioned, but in snowless Vancouver they are not legal, despite being surrounded by snowy mountains.