Step two was to add some "dirt" I used Lamp Black water color paint. It comes in a tube from the local are supply store. The great thing, since this is water color, if you do not like what you did, go wash it off.

Paint the model with the black. Then use a damp brush to wash off the black until you get what you want. Use down strokes so if there are lines they will "run down the car" not across. Like water runs down the side.

The final srep is to dull coat over the lamp black when you are done. This seals the water based paint.