Although the film is a triquel, the events of Cars 2 are not directly mentioned, but there are several visuals from the second film proving it still exists within the timeline. A 12-minute exclusive 4D sneak peek was shown at the "Bugs Life Theater" at Disney's California Adventure starting May 12, 2017 with short clips from the movie and a long demolition derby clip that featured McQueen and Cruz taking on Miss Fritter.

This is the second time that Chris Cooper does a role for a Disney film, after playing Tex Richman in The Muppets. This is Pixar's sixth film to have a post-credits scene after Finding Nemo, Cars, Brave, Monsters University, and Finding Dory.

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Libbey, Dirk (April 27, 2017). "Will Pixar Ever Do Cars 4?". CinemaBlend. Future plc. Archived from the original on April 28, 2017 . Retrieved November 8, 2021.Disney Announces Release Dates for 'Incredibles 2,' 'Cars 3' ". Variety. October 8, 2015. Archived from the original on January 24, 2018 . Retrieved March 20, 2016.