The claims. Tyre Grip creates a "better grip on snow, ice, and slush" by providing "an adhesive surface that grips the roads." You spray it on tires, and it's supposed to work for up to 50 miles ...

In freezing temperatures, most tire compounds harden so they don’t grip as well. The spray compound was supposed to soften the tires up so they could gain traction on snow and ice. People who ...