It's been a long time since I've received an answer, so I'd like to briefly explain how the cars got duplicated like the image at the top.
1.Unlock all car blueprints using the ZTP-NL script.
2.Build duplicate cars without knowing that the script has a feature that allows you to remove duplicate car blueprints.
3.Stage up a build car to the maximum stage.
This is the story of what happened.
I've tried to find a way to deal with it myself, but so far, the only way to delete duplicate cars is to clear a special event where I can get the corresponding car.
However, if you use a script, the 3 cars AE86, 180SX, and Charger in the image will be duplicated, and even if me clear the corresponding special event, only one of them will be deleted, and the other one will be deleted. I will be left in the garage.
Based on this, I would like to say that it is impossible to delete a car that has been duplicated and upgraded to the maximum stage, is it possible to solve this problem without deleting the game data and starting over?
Also, if you have a script or method that can solve this kind of problem, please let me know.
Last but not least, I would like to attach an image of the car being duplicated.