In Pixar's Cars 2, the coastal race setting Porto Corsa is located in Italy.
Porto Corsa hosts the second World Grand Prix race after the opening event in Tokyo. The fictional Italian harbor is built around steep waterfront streets, colorful buildings and a circuit that runs through the town and along the coast. Its visual design draws on Italian Riviera locations.
Lightning McQueen races Francesco Bernoulli there while Mater investigates the spy conspiracy surrounding Allinol fuel. The setting allows the movie to combine a major sporting event with chase scenes involving Finn McMissile and Holley Shiftwell.
Porto Corsa is an invented city, so it should not be confused with the real Portuguese city of Porto or with Monaco's Grand Prix. In the film's geography, Porto Corsa is explicitly presented as an Italian stop on the international tour.