While Britons are typically used to seeing coppers in mundane Vauxhall Astras, there are some patrol vehicles used in the UK ...

“There’s no better way than a real police car, with a uniformed police officer in it, with lights all over it and markings all over it, that, in itself, prevents crime,” he said.

It would take another decade before the MSP started using marked patrol cars (1929), which at the time were equipped with fender-mounted red spotlights with the word "Stop" stenciled across the glass.

An unmarked police car, a Volvo XC60, was crushed against the central reservation barrier, its blue lights still flashing as attempts were made to move it from the scene.

Kansas City approves steady blue lights on police cruisers to improve public safety, deter crime, and enhance officers’ visibility in the community.