In Pixar's Cars 2, what competition travels through several countries?

The World Grand Prix is the international competition in Pixar's Cars 2.

Sir Miles Axlerod creates the event to promote Allinol, an alternative fuel that he claims can power race cars safely. The competition takes competitors to Tokyo, Porto Corsa, and London, giving Cars 2 a globe-spanning structure unlike the first film's Route 66 setting.

Lightning McQueen enters the World Grand Prix, while Mater becomes involved in an international espionage plot after being mistaken for an American spy. The races and spy story eventually converge when the Allinol scheme is exposed.

The World Grand Prix should not be confused with the Piston Cup. The Piston Cup is the domestic stock-car championship central to Cars and Cars 3, whereas the World Grand Prix is a fictional international event created for Cars 2.