Soft drinks and snacks giant PepsiCo will launch a vanilla-flavoured cola Stateside this summer - a year after arch rival Coca-Cola went to market with its own Vanilla Coke.

To be called Pepsi Vanilla, PepsiCo also announced a raft of other product promotions to drive its soft drinks sales.

These include a game show where the final contestant can pocket $1bn to be screened on AOL Time Warner television and called ‘Pepsi Play For A Billion’. No details were given but the show will be produced by directors best known for their “Who wants to be a Millionaire” programme in the US.

A new orange-flavoured Mountain Dew variant - LiveWire - will also be launched, boosted by a tie-in with ‘The Hulk’, a new film from Universal Pictures.

Pepsi also said new packaging was in the pipeline including fridge-friendly can packs.

According to Beverage Digest Coca-Cola’s Vanilla Coke has sold 90 million cases since its May 2002 launch.