In a three year effort (2012-14), the Hyundai Rotem has 2 models: BTC-4D (800-846) & CTC-5 (1800-1827) with over 350 seats serving serving all commuter rail network routes. Along with the same model: kawasaki BTC-4C (900-932). Rotem bilevel coach #801 at North Station following its first revenue round trip https://wikipedia.org/wiki/Hyundai_Rotem
This needs a New Locomotive to run with them the HSP-46. I've suggested that it must run with Avelia Liberty as its high-speed counterpart as part of a Rush Hour Train Pack. Germany gets DB BR411 ICE-T High-Speed DB BR146.0 Commuter/Regional UK BML Class 700 455/8 Southern Green Paint. Click on my signature Rush Hour Train Pack