We sell a lot more tires than we did only a few years ago thanks to their big push on tire sales. We can get pretty much any brand, but dont carry Firestone / Bridgestone or their other brands on the Ford program due to the fiasco a few years ago. The tire matching thing is run through a program we have with Ford corporate so we don't lose too much money. Honestly there is little to no money in tire sales. There is maybe a 10% markup on tires at a normal price structure. A lot of times we sell tires at $5-$10 over our cost which isn't much more than the profit built into them to begin with.