Diet Coke
Diet Coke does not use a modified form of the Coca-Cola recipe, but instead an entirely different formula. The controversial New Coke, introduced in 1985, used a version of the Diet Coke recipe that contained high fructose corn syrup and had a slightly different balance of ingredients. In 2004, Coca-Cola introduced Coca-Cola C2, which it claims tastes much closer to Coca-Cola but contains half the carbohydrates. In 2005, the company introduced Coca-Cola Zero (replaced by "Coca-Cola Zero Sugar" in 2017), a sugar-free variation of regular Coca-Cola.
Pepsi-Cola Made with Real Sugar
In a rare move of no competition within the Cola Wars, Coca-Cola had no plans, as of early December 2012, to release a sugar-sweetened version of Coca-Cola on a regular basis. Aside from Coke sold in the UK, Kosher Coca-Cola, sold only for the Jewish holiday of Passover, and Mexican Coke, sold via import in the United States, the last time Coca-Cola was sold with sugar rather than high-fructose corn syrup was in 1985, just before the introduction of the now-infamous New Coke. The only exceptions began in 2007, when Coca-Cola bottlers in Cleveland, Ohio and Allentown, Pennsylvania started using sugar as a sweetener year-round for Coca-Cola, making these two markets the only ones in which sugar-sweetened Coca-Cola was sold throughout the year.