New Trains on the Danshui-Xindian Line

Tomorrow Taipei's MRT will put two of its new C381 trains into service on the Xindian-Danshui Line.  Aside from some alterations to their exteriors and interiors (LCD screens, bike racks, different pole design), the trains are functionally the same as those currently in use. I thought it interesting however that their per-railcar cost is about the same as what San Fransisco's BART and New York's MTA pay for their new trains, at NT$66 million (US$2.2 million) per car.  However, Taipei's railcars are a bit larger and are connected by passageways, which I believe are more expensive to build.