In 1953, the prototype of the first SONIC Drive-In opened in Shawnee, Okla. Now, more than 50 years and 3,500 drive-ins later, SONIC enjoys the highest customer frequency rate in the quick-service restaurant industry. SONIC Corp. is an Oklahoma City-based, publicly held company that owns, operates and franchises SONIC Drive-Ins (NASDAQ: SONC). Today, Cliff Hudson, chairman of the board and chief executive officer of SONIC, leads the SONIC brand with average unit sales of more than $1 million. SONIC, which specializes in made-to-order fast food, is known for its specialty menu items and personal service. SONIC Unique menu items include TOASTER¬ Sandwiches (sandwiches served on thick Texas Toast), Footlong Quarter Pound Cheese Coneys (hot dogs with chili and cheese), fresh-made Onion Rings, Tater Tots and a variety of Frozen Favorites Drinks¬ Treats and Fountain Favorites¬ Drinks. You can order more than 398,929 drink combinations making SONIC Your Ultimate Drink Stop!(R) SONIC's ever-growing menu is full of options to satisfy every taste, with frequent additions such as Fresh Fruit Smoothies. In the 1950s, SONIC's unique use of curbside speakers to allow customers to place food orders without ever leaving their cars, spawned the slogan SONIC, Service with the Speed of Sound." In recent years, that slogan has been replaced with "SONIC, America's Drive-In." SONIC was founded by Troy Smith and was originally named Top Hat Drive-In, the name was changed to SONIC in 1959."