This is kinda "no **** obvious" Most of the cost of a new paint job is the pre/post labor. I used to strip my cars down, do all the pre-cleaning, sanding and body work, get it masked and sprayed by a pro and then do the color sanding and buffing myself (don't forget the guide coat). I would usually take the turn signals and rear lights off at the body shop so I could drive the car over and avoid the cost of a tow. So it's the cost of the paint and the spray. It's cheap but it takes a lot of work. My SRT6 is black. It is the first and last black car that I will ever own.