Sofia Metro | Софийско метро | Метровагонмаш 81-740.2Б/741.2Б „Русич“

My take on the 81-740.2Б/741.2Б trainsets of Sofia metro which were derived from Moscow’s variant 81-740/741 „Русич“ and built by Metrovagonmash. There’s actually an older similar version of the train in Sofia, 81-740.2/741.2, but is not present in my footage. English: Български/Bulgarian: Метровагони_81-740/741_„Русич“ Софийско_метро