The launch of Diet Coke with Lime follows that of Diet Coke with Lemon and Vanilla Coke, which is also available as a diet drink.
The latest launch follows a number of brand extensions by drinks rival Pepsi, such as Pepsi Blue and Pepsi Vanilla in the summer.
The launch, initially in the US, is being supported by an advertising campaign created by Grey Global, which has previously been awarded project work for the launch of Diet Coke with Lemon.
The campaign will include radio activity using the song 'Coconut', which has previously featured in Quentin Tarantino's film 'Reservoir Dogs', by singer-songwriter Harry Nilsson, best known for his hit 'Everybody's Talking'.
Coca-Cola launched a diet version of Vanilla Coke at the end of 2002 following the successful debut of vanilla-flavoured Coke.
Diet Coke with Lemon was launched in 2001, some 16 years after the last major innovation to the brand, Cherry Coke, in 1985.
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