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Underneath the high-octane action is a quiet eulogy for Doc Hudson. McQueen literally returns to the abandoned town of Thomasville (a stand-in for real-life ghost towns along Route 66) to train the "old way." He listens to old cassette tapes of Doc racing.

McQueen wants to be the old Lightning. Cruz wants him to train like a Next-Gen. Their relationship is dysfunctional and beautiful. McQueen is stubborn, bitter, and suffering from PTSD from his crash. Cruz is hiding a secret: she wants to race, but she was told she wasn't "built for it." cars 3

The climax doesn't feature a hologram or a ghost. Instead, McQueen flips his number from "95" to "51"—Doc’s old number—and becomes Doc for Cruz. The message is clear: You don't honor your mentors by clinging to the past. You honor them by passing their lessons forward. Underneath the high-octane action is a quiet eulogy