Repacking Car ZIPs Correctly (FH6)
The right way to re-zip an edited car so FH6 actually loads it — and why Windows' built-in zip often fails.
7 min read
A correctly edited car will still fail to load if the ZIP is packed wrong. This is one of the most common causes of a broken FH6 car, separate from the MediaPC mistakes.
Zip the contents, with the right settings
Windows' built-in "Send to → Compressed folder" works for some people and fails for others — don't rely on it. Use 7-Zip or WinRAR:
- Open the extracted car folder and select all the files inside it (not the folder itself).
- Right-click → 7-Zip → Add to archive…
- Set Archive format: zip.
- Save it with the original car's filename.
TIP
7-Zip's "Add to *filename*.zip" shortcut also works — just make sure the archive is a zip, not a .7z.
If the car still won't load
The tool author's fallback for stubborn FH6 archives:
- Extract the ZIP fully to a folder.
- Rebuild it in WinRAR (or similar) as a ZIP with a 32 KB dictionary, normal compression, deflate method.
Reported results from the community: WinRAR works, WinZip does not.
WARNING
FH6 carbins are not yet fully supported. If a car still fails after repacking correctly, the carbin itself may be the cause rather than the ZIP — check the release notes for current FH6 carbin status.
Why "just save over the zip" fails
Editing files inside an existing ZIP and saving doesn't repack it the way FH6 needs — the archive has to be rebuilt from the loose files with the settings above. Always work from the extracted folder and create a fresh archive.
Source
Repacking method confirmed by the tool author (d3fekt) and experienced modders (varsinity) in the Forza Mods Discord.
Written against Studio v0.9.2.2. Spotted a mistake? Corrections are welcome on the Forza Mods Discord.
Want to contribute a tutorial?
Guides are community-written. Share yours on the Discord or open a pull request on GitHub.