Since you say you have reducer I'm assuming this is not our of a spray can...which is good! Make sure you use hardener is your acrylic enamel if your are planning on clear coating it, as some brands of AE may lift once clear coat is applied if you dont' use hardener!Is acryic enamel paint good enough to paint my car?
Sure as long as is isn't painted with lacquer based product. And the Acrylic is an automotive grade.
In fact Acrylic is a hard surface paint..
Just please don't use the Krylon brand out of a spray can.