In Pixar's Cars 2, what global racing event does Lightning McQueen compete in?

In Pixar's Cars 2, Lightning McQueen competes in the World Grand Prix.

The fictional event is organized as a three-race international competition. Its locations include Tokyo, Porto Corsa, and London, giving the film a globe-spanning structure that differs from the American racing focus of the first Cars.

McQueen enters after being challenged by Francesco Bernoulli, an Italian open-wheel racer. Mater travels with him and becomes involved in Finn McMissile's spy investigation, which eventually reveals that the races are being manipulated through a dangerous fuel plot.

The World Grand Prix is not the same competition as the Piston Cup. The Piston Cup is McQueen's domestic stock-car championship, while the World Grand Prix is the international event created for Cars 2.