>>Those people who own four wheel drive cars should also be using snow tires. The mentality is that with four wheel drive, you can go through anything in the winter and that is not true, unless you have snow tires on.
It is worth noting here that 4 x 0 (traction) = 0, the same as 2 x 0.
Serious ice and snow cries out for snow tires.
Surprisingly, it's hard to convince people that they need snow tires with four wheel drive.