curprev14:1814:18, 16 April 2024 Hotseventyfivetalkcontribs 58,082 bytes+86 the BART cars are not multiple units, they are individually powered carriages which could theoretically move by themselves, like rail cars. they are coupled together to form multiple units, but unlike typical MUs, the cars are not fixed and can be freely coupled and uncoupled.undoTag: Reverted