switchlanez: except i'm used to 1/10th of mentioned spendings on local icetracks and she forgot to mention that good trackday or two will rip most of studs out of tires
or another lifhack, which is tire rotation, for one axle driven cars. But yes, 205 or even 195 is my choice aswell for local winters.
BUT! Most of thread & arguing about was regarding dry summer tarmac track performance? For that that narrow is going overboard. It's about sweet spot, and going overboard possible at both ends of spectrum.