Bj8.part1.rar -
A .part1.rar file is usually just the first segment of a larger file. To extract the "full piece," you typically need all subsequent parts (e.g., bj8.part2.rar , bj8.part3.rar ) located in the same folder.
Depending on what you are looking for, here are the most likely "full pieces" for that identifier: 1. Austin Healey BJ8 Restoration Series bj8.part1.rar
If you are following a restoration project, "Part 1" usually refers to the initial "teardown" or assessment phase. bj8.part1.rar