Cars do, shoes do, and so do tires.
According to our research, about 80 percent of people we surveyed know tire performance declines as their tires wear. Tire performance can be impacted by wear and other factors. After a lot of hard work, primarily at Bridgestone's Technical Center in Tokyo, the engineers succeeded. According to the U.S. Department of Transportation, average tire life is 41,000 miles. Average annual miles driven per vehicle are 13,600 miles, so there are a lot of worn tires in use on American roads.