Passenger car tyres are: summer, winter and all-season. The tread can be: symmetric, asymmetric or directional. Summer tyres can be used from spring till autumn, when the temperature is higher than 7°C. Tyres loose their properties in lower temperatures and this is the moment when it is worth to fit winter tyres. Winter tyres are designed to drive in winter conditions in view of rubber compound and the tread. Winter tyres have more grooves and lameles, which provide better traction on the snow. In the summer tyres you can see all possible tread patterns, in winter tyres producers used only 2: asymmetric and directional. All-season tyres have winter and summer tyres features. This tyres have good ratings for all year round, regardless of weather conditions. All-season tyres are recommended for drivers with the calm driving style, who defeated six thousand kilometers a year. Summer tyres are perfect for drives defeted five to six thousand kilometers a year with the dynamic or aggressive driving style. Tyre manufactures want to produce the tyres, which will have great grip on the wet and dry surface, short way of braking, fuel economy and high comfort. The real challange is to design winter tyre, which have a good grip on the snow, slush and wet surfaces with the low noise.