Bravozero this isn't the place to be asking for such information, however a LOD is a Level of Detail resolution model that is created in zModeler by the person creating the car model. LOD's change at different distances to decrease the amount of resources used by the game at range (for instance interiors, doors, radios etc can be removed from LOD's where they are not ever seen). The issue with the lights not showing at a distance is due to the creator of your car models not creating enough LOD's for the game to render things, it's also the reason for some new modeler's cars being a blob of grey at a certain distance etc.
Hope that explains it a little, but keep things on topic, that's not a question for this thread.
Regards,
Aussie.