 One is currently under construction and another is under development.The original order of 300 Metro cars was manufactured by Rohr Industries, with delivery in 1976.These cars were numbered 1000–1299, and rehabilitated in the mid-1990s by Breda Costruzioni Ferroviarie (later AnsaldoBreda, now Hitachi Rail Italy) and WMATA at their Brentwood Shop in northeast Washington, D.C.

Two major characteristics distinguished the 1000-series from the later series cars.