Ranking — and grading! — every flavor of C4 energy drink, from Starburst to Skittles. Share this article share tweet text email link Christian D'Andrea. November ... Orange Slice: B.

Ever wondered which of C4 Energy Drink's flavors are worth your hard-earned cheddar? I tasted 11 flavors and got the data. ... Orange Slice. $18.99 for a 4-pack from Walmart. Shop Now.

Ever wondered which of C4 Energy Drink's flavors are worth your hard-earned cheddar? I tasted 11 flavors and got the data. Here are 11 C4 flavors, ranked.