Pepsi Co takes Coca Cola to court over ad

Pepsi is taking Coca Cola to court over an ad campaign that it claims is false and deceptive which began airing last week during the NCAA men's basketball tournament in the US.

The controversial spot for Powerade Option shows two Amish farmers drag racing their horse-drawn carts filled with hay bales (one with 10 bales and the other with 50). The farmer with less bales easily cruises to victory, and touts that Powerade Option has 10 calories compared to Gatorade's 50 calories.

"In other words, Coca-Cola is telling consumers that Powerade Option's fewer calories literally make you go faster. However, Coca-Cola cannot possibly substantiate this overall superiority claim," the suit says.

Powerade Option, which contains "negligible" calories, cannot refuel athletes in a similar manner" as Gatorade, the court filing claims. The suit seeks a permanent injunction to bar Coke from running the ads.