In Pixar's Cars 2, what is the name of the race series organized by Miles Axlerod?

In Pixar's Cars 2, the race series organized by Miles Axlerod is the World Grand Prix.

The competition is presented as a three-race international event designed to promote Allinol, an alternative fuel. Cars from several countries compete in visually distinctive settings, giving the sequel a much wider geographical scope than the original film.

The races take place in Tokyo, Porto Corsa, and London. Lightning McQueen enters as a competitor, while Mater becomes involved in Finn McMissile and Holley Shiftwell's espionage investigation.

The World Grand Prix is not the same competition as the Piston Cup. The Piston Cup is the recurring American stock-car championship associated with Lightning's career, whereas the World Grand Prix is the international event created specifically for Cars 2's plot.