Run-flat tires are an increasingly common type of tire on passenger cars. Manufacturers such as BMW are mounting them on new cars instead of equipping the car with a spare tire. Doing so saves weight ...

Four Wheeler Tech Editor Verne Simons finds a bolt in the tire of his old Jeep and shows us how to plug the hole.

I consider tire punctures a rite of passage in driving cars. Flat tires are a nuisance, yet are part of the driving experience. It won't matter how careful you drive, since nails, screws, and other ...