Green’s Dictionary of Slang

(Aus. und.) to disguise a stolen car prior to reselling it.

2016		D. Whish-Wilson Old Scores [ebook] Swann had watched Corvo grow up in Northbridge, always around his father Tony’s illegal gambling club [...] before graduating to running his own gang of teenage kids dealing pot and rebirthing stolen cars.
2018		G. Disher Kill Shot [ebook] [A] motor vehicle theft and rebirthing ring in Bankstown.