A113 (pronounced A1-13) was the classroom number used by character animation students at the California Institute of the Arts. Many of its alumni (including Pixar staff) have used the number in their professional works. It appears a lot of times in Cars films and video games. It is a running gag in Pixar films and some non-Pixar films.
- Mater's license plate in every movie and video game in all Cars content.
- The number on Trev Diesel in Cars.
- Part of Dexter Hoover's license plate - A113CA in Cars.
- On Siddeley's tail in Cars 2.
- Beneath the photo of Miles Axlerod's engine when Finn McMissile, Holley Shiftwell, and Mater are examining it in Cars 2.
- A113 on Pixar Wiki