Holy crap. That is stealthy!!
Here’s the writeup:
Ford is debuting Rear Spoiler Traffic Warning Lights to complement the “no-profile” Front Interior Visor Light Bar on Police Interceptor Utility. The feature integrates bright LED lighting into the vehicle’s rear spoiler, providing law enforcement with a highly effective tool to alert drivers of emergency roadside situations while affording officers full visibility out the rear window. When deactivated, the lighting is difficult to detect for someone approaching the vehicle from the rear.