If you want some cars unlocked without wiping your story progress, consider these:

When searching for a save file, the term "Verified" is critical. An unverified save file might be:

A verified save file has been tested by the community on the latest game version (1.0.6.0 or later) on Windows 10/11. It guarantees that all cars appear in the "Showroom," all engine swaps function correctly, and the save state is "non-retired" (meaning you can still earn new rewards).

Navigate to your save folder:

If you prefer modding over save swapping, consider Unite Mod or Heat Remix – they allow unlocking all cars via in-game menus without replacing saves. However, a verified save file remains the fastest zero-effort method.