Fan Theory: Cars Takes Place in a Future Where Humanity Has Vanished
What's There
Cars' entire world is built for and populated exclusively by sentient vehicles — roads, gas stations, motels, and small towns, but no humans, human-scaled buildings, or human infrastructure anywhere in the film.
Why It Matters
"The Pixar Theory" reads this absence literally: rather than a world that was always car-only, it proposes Cars is set in a distant future (the theory places it around the 2100s) after humanity has disappeared entirely, with sentient machines having inherited a world built by and originally for people — complete with human-scale roads, signage, and buildings now repurposed for a car-only society. This dovetails with the theory's reading of WALL-E as depicting humanity's actual departure from Earth centuries earlier. It's a reading with no direct textual support in Cars itself — the film never addresses what happened to humans, or whether they existed in this world at all — which is exactly why it stays speculative rather than becoming a "likely" reading of a specific clue.
