When you purchase new tyres for your car or your SUV, the safety aspect of the tires should always be the first priority. Tyres contribute a lot to the safety of a vehicle as it is the only part that is in contact with the road surface, so if the tyres can’t convey the forces in terms of acceleration and retardation from the car, then it will not be safe to drive. The tyre also makes sure that you can take sharp corners without losing control or get you through wet streets without the risk of aquaplaning.
When you select tyres, the only safety feature that is listed on the EU-tyre label is the wet grip, which indicates how quickly the car will stop on a wet surface. Being able to stop quickly is often essential in avoiding accidents. The distance of how quickly you can stop is referred as the braking distance and tires that exhibit shorter distance are always to be preferred. To stop on wet surfaces is more challenging than on dry roads, but of course less challenging than stopping on snow or ice.
So the requirements will vary depending on if you are buying summer tires, winter tyres or all-weather tires, but the priority is that they should be as safe as possible for your intended use. For summers you need to worry most about the wet surfaces and heavy rain, which increases the risk for aquaplaning. During winters you have to make sure that your tyres are good in winter conditions. If you will drive more on ice than snow, you should go for a studded tyre, as they will give you the best grip on icy surfaces. If it is more snow, the non-studded tyres will perform just as well, so then you can decide based on personal preference which tyres you want to have. If you travel a lot between different countries then you will need to assure that studded tyres are allowed in that country before you drive there. If the winters are not so harsh and you always want to be ready to drive regardless of what weather you have or what is forecasted, then the all-weather tyres is a great compromise tyre that if it is winter approved, can handle both summer and winter conditions.