What is the surname of Finn McMissile in Pixar's Cars 2?

Finn McMissile's surname in Pixar's Cars 2 is McMissile.

Finn is a British spy car who recruits Mater during the film's international adventure. His name combines a conventional surname-like construction with a direct reference to missiles and spy technology, matching the character's role and equipment.

Finn drives a fictional 1960s-style British sports car and uses gadgets, disguises, and investigative skills. He initially mistakes Mater for an undercover American agent, drawing the tow truck into a conspiracy surrounding the World Grand Prix.

The character was voiced by Michael Caine, whose association with spy films helped give Finn a classic secret-agent tone. Finn's partnership with Mater also creates the movie's main contrast between polished espionage and accidental improvisation.