The painted surface of a car, building, etc.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "paintwork" in a sentence
"Manufactured in honour of the iconic Barbie's 50th birthday, the Fiat 500 Rosa features fabulous bright pink paintwork which is matched by a glitzy pink interior."
"Its unique colour scheme likely suggests this particular car has been wrapped to preserve its paintwork, meaning a production version may be just around the corner."
"But there was, of course, more to the Murrays' success than a mother who wasn't too precious about the paintwork, and was always up for a ball game."