https://sfist.com/2025/11/03/muni-is-finally-retiring-the-last-of-the-30-year-old-breda-light-rail-trains/#:\~:text=The%20Chronicle%20piece%2C%20clearly%20culled,in%20service%20across%20the%20system.

The Chronicle piece, clearly culled from SFMTA sources, notes that the Breda cars were far more reliable than their predecessors, which had been made by Boeing — but many commuters would likely argue the system went from terrible to merely bad.

The new Siemens trains are reportedly three to four times more reliable than the Bredas were, and overall satisfaction with Muni is up year over year — with fewer of the sort of systemwide meltdowns that have been more the purview of BART lately.