Tire lettering made its way to production tires in the mid-to - late 1960s in the form of raised white letter tires .
Tire lettering gained popularity with American muscle cars in the 1970s and 1980s until tire manufacturers stopped producing raised white letter tires on a mass scale .
Tire lettering made its way to production tires in the mid-to - late 1960s in the form of raised white letter tires and gained popularity with American muscle cars in the 1970s and 1980s until tire manufacturers stopped producing raised white letter tires on a mass scale .