d4d4d4d4 you are giving some seriously dangerously poor advice and opinions.
Here is an article that was in Car and Driver a few years back:
pay particular attention to this graph:
Note the top blue bar, and the first green bar, that is the same car, an Audi A6 Quattro on snows, and then on allseasons. The braking distance goes from 181feet to 245 feet. Let me help you out here with a little math, that is not a 2 or even 5% difference. In fact it is an 86% difference.
I guess 64 feet is a lot to me.