In Pixar's Cars 2, London hosts the film's final race.
The London event is the third and concluding race of the World Grand Prix. It takes place around recognizable London landmarks, including Big Ben and the area near Buckingham Palace. Lightning McQueen competes for the World Grand Prix title while Mater becomes involved in the international spy plot.
Cars 2 moves its story across several countries and racing locations. The earlier World Grand Prix races take place in Tokyo and Porto Corsa, a fictional Italian coastal city. London provides the climactic setting because the race and the espionage storyline converge there.
The race should not be confused with the film's opening sequence in London, which features a spy mission involving Finn McMissile. Nor is London the name of the race series; the competition is the World Grand Prix. The setting is a real city, while several details of the fictional race course are stylized for the animated action.