I am currently using a lacquer as a clear coat, tried enamel did like it. I have been airbrushing my cars and plan to continue doing this. I am considering moving to a 2 part urethane automotive clear and wanted to know if it is going to make a difference. This is going to be an expense for me since I don’t have the spray gun or the air compressor big enough to run one. On top of that it is going to be $60-$75 just to purchase the urethane.