In Pixar's Cars 2, the mysterious racing fuel used in the World Grand Prix is called Allinol.
Allinol is presented as an alternative fuel developed by Miles Axlerod, the former oil tycoon who becomes the World Grand Prix's organizer. The fuel is promoted as a cleaner replacement for traditional petroleum-based racing fuel.
The film's espionage plot reveals that Allinol has a dangerous weakness: electromagnetic pulses can cause engines running on it to malfunction or explode. The plot uses this vulnerability as part of a conspiracy intended to discredit alternative fuel.
The World Grand Prix takes place in Tokyo, Porto Corsa, and London. Mater becomes involved in the investigation after British agents mistake his accidental observations for deliberate spy work.