I was talking about AWD vehicles on the roads in Connecticut, not Montreal. They are extremely popular here and most people do not use snow tires. Near the coast in Connecticut the temperature mostly hovers near 32 degrees fahrenheit which is 0 degrees celsius. There is not too much snow except for the odd N'oreaster.
As far as stopping distance and braking that becomes an issue depending on your speed but if you are on black ice, you are going to have trouble stopping no matter what.
For the conditions we have, I had two all wheel drive vehicles, first a Subaru and then a BMW, and never had a problem with either one as far as traction or stopping distance and this is also considering I have to travel all through the State for my job.
The only car I had trouble with is the one I had before the Subaru, which was a Honda Prelude. Honda no longer makes them, but I paid cash for a new one in 1997 (the first time I ever paid cash for a car), and it was a great car during spring, summer and fall, but it absolutely could not handle even Connecticut roads in the winter. It had high performance tires built for the racetrack. I was almost killed in Litchfield in a one car accident in about winter of 2001 or 2002, and that's when I decided to trade that fucker in for an AWD Subaru.