While technically a "vehicle editor," VltEd modifies the game’s binary files ( CARS.VLT ), not just the save. It works alongside a save editor.
The primary use case is skipping the early game grind. If you are a veteran player who has beaten the game multiple times, you might not want to spend 15 hours defeating Blacklist racers #15 through #5 just to drive the elite cars. A save editor can unlock all 32 cars in the career garage instantly.
: The tool is generally considered stable, though some users report it may not recognize save files stored in non-standard directories, such as those used by large modpacks like Redux V3.
Unique Performance Upgrades ("Junkman" parts) are random drops from winning Blacklist races. An editor allows you to add these rare +3 parts to any car without hours of RNG.