First you should use a search with the term tires. Secondly research some of the manufactures such as Firestone and Goodyear. I have had my tires replaced at Tires Plus and would highly recommend it.
No, Firestone is still Firestone
Firestone makes their own tires. Firestone is a subsidiary of Bridgestone Tire Company.
Firestone tire is a NASCAR sponsor. Some of the cars use firestone tires other cars use NASCAR tires. Firestone also sells NASCAR tires in addition to their own brand.
Yes, Bridgestone makes Firestone tires. The company is now based in Japan.
Only certified Firestone centers sell car and or truck tires. Those centers may have the word Firestone in in the name or have documentation stating that they are contracted by Firestone to sell certified Firestone products.
Firestone makes Champion tires.
Firestone offers many brands and features. The name Firestone applies to a company that specializes in many types of tires.
try the bridgestone/firestone website?
Yes they are good tires.
An argument can be made that Firestone has the bets racecar tires, as Firestone tires have not been subject to controversies that have befallen Goodyear in the last ten seasons.