Let's talk wide low profile tires...I have a 2009 370z currently on Nitto Motivo all seasons 245/40/29, 275/35/19, I drove it last winter on bare pavement days down to -10 ish with no problems, I've been debating whether to get winter tires this year, should I even bother? I understand that for this size of winter tire they're basically useless anyways in snow, so I may as well save my money... I'm only driving from my completely flat neighborhood in airdrie to downtown Calgary and not when snow is in the forecast. The Motivos have maybe 75 % left.