My Brother is a car painter, I have a friend with a hot rod that wants him to paint it. My brother told me that he used to do side jobs cheap but any more he dont. He said now he charges around 3000 for a whole car. As stated above there is a lot to do the job correct, and said it is a real pain to take all of the trim, lights, hood, and all associated parts, and preping before painting. He said it just isnt worth all the work when trying to give buddies deals. So I would say between a grand and three. As stated, you get what you pay for. I would say my bro was a higher quality painter though, he paints everything from BMW,s to my uncles 40,000 street rod.