PingMag has an article about the nifty lights on top of taxi cabs in Tokyo. Includes many example photos!
Prowling the city of Tokyo are hoards of taxis, chasing down lonely passengers on their way, to and fro. Characteristically, all are equipped with automatically opening doors and a driver’s white gloves. However, little distinguishes these roaring vehicles, classically Japanese, outside the small glowing beacon perched on the center of their tops - each company from every region set themselves apart with their own special logo and shape. How practical, since, from far, a passenger can see what type of ride they are in for that night! Today, PingMag spots some of the great variety of roaming lights for you.