Ensure you have every piece of the set (part1, part2, part3, etc.) in the same folder . If one is missing, the extraction will fail.
The most common mistake is trying to extract every part individually. You only need to "start" the process once. Hot.Wheels.Unleashed.v20221003.part1.rar
Remember that you need enough disk space for both the compressed .rar files AND the final extracted game folder. Ensure you have every piece of the set