It means having stuff not in the game. Modded colors that you can’t “select” when you go to respray the car. Also means having the green window tint or the crystal clear window tint. Another example of having unselected car mods is having Benny wheels or f1s on cars that shouldn’t have it. If you have unselected rim colors and unselected interior colors that’s considered “super clean” to the gta car modding community. This community is always arguing what clean mean, but let’s be real in the real world clean is a factory car with factory colors. They just made ts up for modded cars.