I've seen a few cars with flat looking paint. My question is how do they get it and is it hard to clean. One article said that they used a black base the went over it with clear coat plus flattener added. I ask a painter about this and he said that the flattener would look milky. Another article said it was satin. They said to add flattener to the paint. Wouldn't you still have to use clear coat to protect and get a smooth finish? And again would it be hard to clean? the reason I'm asking this is cause I like the flat look. Thanks John