As much as this is going to be me toeing the line, i have to agree with Rich, motor wiring should be black and no other colour. Its just looks so clean...
As a side note, ever wondered by registration plates on cars arent black on white? As the man above said, yellow is the most easily perceivable colour to the human eye, it must be a wavelength thing, so black on yellow. That explains why Superstar has that colour scheme, a man relying on science to help him drive faster!
I salute you sir!
AC