Tyres like the 225 40 R18 can fit on an assortment of makes and models. They have a section width of 225mm and an aspect ratio of 40%. This is the height of the tyre in relation to its width. The R in the code indicates that they are made with radial ply construction, while the 18 means that they are suitable for wheel rims with a diameter of 18 inches. A tyre such as the 225 40 18 92W can carry loads of up to 630kg per tyre at speeds of up to 270km/h. The final two digits symbolise the maximum load capacity, while the letter at the end represents the top speed at which the vehicle can operate safely.
225 40 18 tyres suit a variety of different sedans, coupes and hatchbacks. There are performance cars that can use them, as well as luxury and lower end vehicles. The price of 225 40R18 tyres will vary according to the quality and the manufacturer.
These tyres will fit models such as the Audi A3, the BMW 1 Series, the Ford Focus, the Holden Cruze, the Honda Civic, the Hyundai Coupe, the Kia Shuma, the Lexus CT, the Mazda 3 and the Subaru Legacy.
If you would prefer a narrower tyre, the 215 45 R18 might be a size to consider. This will handle better in wet conditions and give you better fuel economy.