SonicSprite with a touch of Lemonade, Powerade, a& Cranberry JuiceSpriteLemonadePoweradeCranberry JuiceAsk for a Sprite with a splash of Lemonade, Powerade, & Cranberry Juice. Let them know that this is the "Purple Sprite".All Locations4 - Medium$1.19 Small$1.69 Medium$1.89 Large$2.09 Route 44http://hackthemenu.com/sonic/secret-menu/purple-sprite/Everyone knows that a Purple Sprite isn't normal. So what makes the Purple Sprite from the Sonic "secret menu" purple? Well it's a delightfully refreshing combination of Powerade, lemonade, Sprite, and cranberry juice. When you are in the heat of summer and need something refreshing to keep your thirst quenched, grab something off the Sonic Secret Menu like this colorful purple Sprite. Be sure to check out the Sonic Secret Menu as well as visiting our home page to check out the complete list of All the Secret Menus from all your favorite restaurants!