Sonic Red Bull Slush 2024 Price.  — for the first time ever, sonic guests can cool off after a hot summer day with the taste of juneberry, featuring notes of cherry, red berry, juneberry, and red grape, with a slightly floral finish.  — red bull slushes are priced at $3.99 for a medium, and 8.4 fl oz cans of red bull energy drink and red bull summer edition strawberry apricot are also available for $2.99 at participating drive.

 — you can order the griller cheeseburger solo for a suggested price of $6.99 or as part of a combo meal with a side and a drink at participating sonic locations. I got one on february 12, and i.