Fizzco

Fizzco is the company behind the hit drink OverCharge Delirium XT in Sunset Overdrive.

In-Game Lore
Fizzco was described thusly on a game tie-in website:

''Fizzco was founded in 2007 by Rupert F. Kane, the visionary behind several revolutionary products such as Easy-Peasy shelf meats and MuffinTopps cereal. Fizzco's vision is simple: craft the best damn beverages on Earth. Their premier product, UNTZ, achieved that. It's the planet's most popular drink with over 20-billion cans consumed a day. But, never one to settle, Fizzco's now prepping to revolutionize the liquid industry once more with its xtremophile-infused OverCharge Delirium XT.''

UNTZ
UNTZ is a predecessor drink to OverCharge Delirium XT, and was marketed much the same as Delirium has been. The drink seemed to not have any side effects, and was wildly popular amongst youth.