I don't think that is backed up by data. If you switch from regular summer tyres to good winter tyres, the braking distance on ice from 40 km/h decreases from 1

I don't think that is backed up by data. If you switch from regular summer tyres to good winter tyres, the braking distance on ice from 40 km/h decreases from 105 metres to 52 metres (or 65 metres on shittier European winter tyres). Switching to studded tyres would then decrease it to 33 metres. https://www.rengas24.com/images/breaking-distance/breaking-distance-new-fin.webp https://www.rengas24.com/images/breaking-distance/breaking-d...