Unmarked Police Cars Are Designed to Fool You but These Clues Give Them Away. Olivia Richman. Mon, June 23, 2025 at 3:30 PM ... So to find the most useful signs for spotting unmarked police cars, ...

The Missouri State Highway Patrol is adding "ghost graphics" to 20 of its vehicles to give them an almost invisible presence during the day for situations where stealth is needed.