In 2013 BVG Tram Tatra KT4D 6157 & 6115 served line M4 to Falkenberg. No 6157 was sold in 2016 to Alexandria (Egypt) and 6115 behind was sold in 2018 to Lwiw (Ukraine).
From a hint of "Bee" (NKP 765), colorful "Bees" (KCS), "Bees" w/ "attitude", to "Bees" that "sting" your eyes, in their own way they have "Bee" on display! Equipment that "Buzzes" with Yellow & Black colors! ("Bees" can still "Bee" entering this "hive"!)