Nobody has mentioned AMRCN HP...Obviously American Horsepower. I had 8URCOBRA, 0-60N3, WHOSNEXT and GOT CAM? on my cammed Z06 and my buddy had Z06WHAT on his Cobra.
I got a letter back from Caif DMV saying it was rejected as it was found to be "offensive to good taste and decency, our may be misleading to some of our citizens."