This BlackRidge Low Pressure Air Spray Gun comes with two 1.5mm nozzles, one is a fan pattern and the other a round pattern, so spraying paint with them, should produce a nice finished paint surface. You only need an air compressor that can supply 60 Litres/min constant air pressure.
Please remember this spray gun is an entry level air tool, and will be suitable for most domestic spray jobs around the house.
Available from: SuperCheap Auto ? https://www.supercheapauto.com.au/p/blackridge-low-pressure-spray-gun---600ml/340068.html
P.S. IF YOU WANT TO PAINT YOUR CAR, I would recommend you purchase a differebt spray gun, like this Gravity Feed HVLP Air Spray Gun ? https://www.supercheapauto.com.au/p/blackridge-air-spray-gun-kit-hvlp---4-piece/340074.html