A tyre which is more fuel efficient helps reduce your driving costs and CO2 emissions. There are seven categories, from A, the most efficient which means you will use the least amount of fuel for your journey, to G, the least fuel efficient.

Choosing A-rated tyres over G-rated tyres could reduce your fuel consumption by up to 7.5%.

Wet braking performance is critical to your road safety as it affects how quickly you will be able to stop in wet conditions. There are seven classes.

An A-rated tyre provides the shortest braking distances on wet roads whereas a G-rated tyre will have the longest braking distance in the wet.

Driving on four A-rated tyres at 50mph can help you stop up to 18m* shorter than if you were driving on four G-rated tyres.

This is the amount of noise made by a tyre when it rolls along the road surface.

The tyre’s exterior noise emission is shown by a series of black waves. Three black waves indicate that the tyre produces the most amount of noise on the scale.

One black wave indicates the tyre emits the lowest level of noise on the scale.