This specific file is part of one of the last major releases from CODEX.
: Because the game was massive (over 100GB), it was split into dozens of compressed "parts" (like .part16.rar ) to make it easier for users to download and for scene members to distribute across private servers. The End of an Era
The story of this file began in . While Forza Horizon 5 was highly anticipated for its Mexican setting, it was cracked almost immediately upon its early access release.
In the world of digital archives, part16.rar is simply a 5GB or 10GB chunk of the game's data. If this file is missing or corrupted, the entire game cannot be installed, as the extraction process requires every single numbered part to be present and identical to the original.
: In February 2022, just months after the Forza Horizon 5 release, CODEX officially announced they were retiring after eight years.