In Pixar’s Cars, the Hudson Hornet model used for Doc Hudson was first introduced in 1951.
Doc Hudson is designed as a first-generation Hudson Hornet, a real American car introduced for the 1951 model year. The Hornet was known for its low body design and strong performance, especially on stock-car tracks.
The film uses that history to explain Doc’s identity as the Fabulous Hudson Hornet. His racing number is 51, which reinforces the connection to the model’s introduction year. The character’s fictional career includes three Piston Cup championships before a crash ends his time as a top racer.
The exact model-year detail is easy to confuse with the year Cars was released, 2006, or with Doc’s fictional crash-era backstory. The relevant year for the real Hudson Hornet’s introduction is 1951.