Vault energy soda, is very closely tied to "Surge."
Surge came out around 1996 under the name of "Urge", and had a huge introduction. As time went on, however, the production and sales of Surge greatly decreased. In early 2000, hardly anyone even bothered to stock shelves with Surge. Around 2002 marked the end of the major production of Surge, and it fell hard from where it used to be. Although sales of Surge were discontinued, a great amount of consumers felt that it shouldn't have been. A great majority of this community went to great lengths to bring Surge back. A large petition site, SaveSurge.org, is a large community dedicated to bringing it back to shelves. This organization was started in 2002 and have been widely credited for the release of Vault. Surge is only purchasable now in Norway, and high-dollar auctions hosted on eBay.
Around 2005 Vault hit the market in select areas of the United States. In 2006, Vault soda was nationally released, and has since flourished in advertising and sales. Many consider Vault to be the new Surge, and others believe it's on the 90% region in likeness with its original. Fan sites such as VaultKicks.org can tell you more about it.
"Drinks like a Soda, Kicks like an Energy Drink."
"The Taste. The Quench. The Kick."
"Get to It."
Person 2 - "It's not Surge, it's a Hybrid energy soda. A trailblazer of sorts in the soda industry."