Dallas commuter operator tests new Stadler DMUsNetwork testing precedes planned entry into service in late 2025. Photo Credit: DARTNetwork testing precedes planned entry into service in late 2025. Premium Subscription Required You must be a premium subscriber to access this content: View Subscription Options Already a subscriber? Log in here Categories: Commuter Rail, Fleet, North AmericaTags: Dallas, Dart, DMU, Flirt, new fleet, Premium, Stadler, USAMore on this story MaaS appeal, the near or distant future of urban transport?March 23, 2020 Stadler awarded Dart Flirt maintenance contractJanuary 8, 2020 DART awards Stadler DMU contractJune 3, 2019