What size air compressor would you recommend to paint a car with?

 

depends on the cfm requirements of your gun. i would get a compressor rated at 12 cfm and above. high cfm compressors really help when using grinder and da sanders cause you never have to worry about running low on air. once you run low you have to stop and wait for the compressor to build the air back up. this is very bad when your painting because of flash times. plus if your compressor is always running you have more chance of getting lots of water in your lines.