I always thought that police cars had the obvious markings and graphics so that a person would immediately recognize it as a "police car." That was the whole point of the graphics. So now police agencies are going the exact opposite way... using cars with subtle markings, or none at all, in an effort to hide the fact that the car is a "police car." If the new line of thinking in law enforcement is that it's better for cop cars to be unidentifiable to the public, as is obviously the thinking behind unmarked cars, why do they bother with "police car" markings at all? They seem to be contradicting their own line of reasoning.