: An unmodded method to reset progress while keeping unlocks. By intentionally getting a "Game Over" (running out of impound strikes) on a 100% completed save and then starting a new career on that same slot, the game resets to 0% but may keep all cars and performance parts unlocked in the shop. The "0% Progression" Bug
: Tools like the NFS Carbon Save Editor are used to "fix" checksums and synchronize CD keys so downloaded files can be recognized by the game.
It is important to distinguish between a 0% save and a 100% save.