BART ‘Fleet of the Future’ Hits Software, Reliability Roadblock The $2.6 billion efforts to replace the California transit agency’s aging train cars stalled after it refused to take delivery of new cars until the Canadian firm Bombardier resolves software glitches and other problems. by Nico Savidge, Mercury News / January 25, 2021 Shutterstock (TNS) — BART's $2.6 billion project to replace its aging train cars with a new "Fleet of the Future" is supposed to herald a sleek new era for the transit system. But the future is off to a rocky start. The replacement effort had already fallen well behind schedule before it ground to a halt this month, when BART stopped accepting new cars until their manufacturer, the Canadian transportation firm Bombardier, resolves software glitches and problems with the trains' wheels that have caused breakdowns nearly three times more frequently than the older fleet.