[suplex]

I have one of those sponges that you can find in any auto accessories store, like Pep Boys for example, where it's got a mesh on it that acts like a scrubby but it's safe for auto painted finishes. I use that with Turtle Wax: Bug & Tar Remover, and it comes out fine.

I don't know if Black is more difficult or not, my Camaro is Yellow, but it does work.