The characteristics of winter (or snow) tyres are different from those of the ones we use during warmer months. When spring awakens, the switch to summer tyres is not some marketing ploy to bump up tyre-makers’ profits or to make things easier for tyre-fitters. When we change tyres, we are doing it for ourselves. Almost everyone has personal experience of the fact that driving on summer tyres in winter is a bad idea. Summer tyres are made of sturdier material which becomes hard as rock in lower temperatures and loses traction. You have no grip on snow and start skidding as soon as you hit a slippery patch.