Operational since 1953, Sonic Corp. has been operating and franchising one of the largest chains of drive-in restaurants known as Sonic Drive-Ins in the United States. Located in Amarillo, Texas, Sonic Drive-Ins offers a selection of food items, including specialty drinks, frozen desserts, made-to-order sandwiches/hamburgers, footlong chili cheese coneys, hand-battered onion rings, tots, salads and wraps. It also provides breakfast items, such as sausage/bacon with egg and cheese Breakfast Toaster/CroisSONIC breakfast sandwiches as well as breakfast burritos. The company serves over 3 million customers through more than 3,500 drive-ins.