Fort Worth Transportation Authority awarded Stadler a $US 106.7m contract in June 2015 to supply eight four-car trains for the 43.5km line from Fort Worth city centre to Grapevine and Dallas Fort Worth (DFW) Airport Terminal B, which is due to open at the end of next year.

Each 81m-long articulated DMU will accommodate 488 passengers, 229 of them seated, with four sets of doors on each side.