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 ...

Just clear the tyre of snow, spray on, leave to dry for a few minutes and it’s ready to go. It was no match for the chains or socks, but we were impressed by the step up in grip over the ...