Turquoise taillights tell you this Mercedes is driving autonomously::California and Nevada have approved a test of the new light color.
Turquoise taillights tell you this Mercedes is driving autonomously::California and Nevada have approved a test of the new light color.
Emergency vehicles’ lights blink and are on the roof. Using the same color for multiple lights isn’t an issue; see: braking lights and tail lights.
Also judging by the picture it’s more of a white-blue than the bright blue used by emergency vehicles.