Notes: In a relatively new market, Portland TriMet's initial four car order includes many firsts for Colorado Railcar's DMUs. Trailer car 2001 is the first unpowered cab car built by the company. The cars are also the first strictly high floor cars built, with no stairs for a low-floor platform (which TriMet doesn't have), and the first DMU's build without restrooms. The TriMet DMUs and trailer feature a redesigned aero cab. The trailer has 82 seats, and includes two bike racks.

The cars are to run on a new commuter rail service between the western Portland, OR suburb of Beaverton to the southern Portland suburb of Wilsonville. The service is hoped to be the start of a larger regional service between Portland and Salem, OR, paralelling the Cascades service already run by Amtrak and the state DOT on a different line. The cars are expected to go into service in Fall 2008.