In order to achieve optimal driving conditions, Continental recommends that the same tyres are fitted on all wheel positions of your car. In other words, tyres of the same brand, tread pattern, size, load index and speed symbol should be fitted all around. It is especially important for the tyre size, load index and speed symbol to be in accordance with the car manufacturer’s specifications, on all wheel positions. In many countries, this is a legal requirement. Driving with a non-recommended mix of tyre sizes, constructions, and speed ratings can be dangerous and illegal. Follow the manufacturer’s recommendations and/or seek the advice of a trained specialist if you are considering upgrading your tyres to ones of differing sizes, constructions, load ratings or speed ratings.