Sonic drive-ins have a new beverage on their menu....ICED GREEN TEA. (comes sweetened with sugar, diet green tea without sugar, and diet green tea w/Splenda). This item may not be available at all Sonics, though it probably is.
I now drink the Diet Green Tea w/Splenda...at only 5-calories for a 32-oz size. The tea tastes wonderful, and it's all the more satisfying to know that I'm getting the healthy benefits that green tea offers!