ATLANTA–(BUSINESS WIRE)–SONIC® Drive-In is continuing to serve up unbeatable value and fun variety with its newly refreshed $1.99 Menu, making it easier than ever to enjoy a delicious meal without breaking the bank. First introduced this summer, the $1.99 Menu, also known as the FUN.99 Menu, features a variety of new and iconic SONIC entrées, snacks and desserts for just $1.99 each, all day, every day.* Back by popular demand, the beloved Grilled Cheese Burger and small Cream Slushes are both