Well, these sawblades don’t seem to work well as snow tires. The videographers only speak metric, so I have no idea how to compare apples to hectares or anything, but I could have saved them a lot of trouble and told them it wouldn’t work well before they even tried it.  I can immediately see two flaws in the plan: Giant saw blades cost much more than snow tires. Strike one. Strike two is they don’t understand how saw blades work. They’ve mounted them on the axles facing the same way they’d be placed in stationary machine to cut wood. If they knew anything about saws, they’d have mounted the blades facing backwards. Then it would have moved the car forward without cutting into the ice much, but would also completely stop the car from sliding backwards, and the braking would have been amazing. That’s what good tires do anyway. Ham and egg carpenters mount their blades backward in chop saws to cut soft metals like brass sorta safely for the same reason.