 cars that are all drum brakes and refit them for disc fronts and redo the master cylinder which means the lines are run differently you're going to have a equalizer valve in there of some sort but those are that's okay someone might add seat belts and a car didn't have seat belts so those are realistic but as far as taking a car that came a certain color and painted lime green or something and changing it all out it's their car they do what they want but i think of