The 8000-series cars will be constructed by Hitachi Rail. While these railcars would have a similar appearance to the 7000-series, the 8000-series would include more features such as "smart doors" that detect obstruction, high-definition security cameras, more space between seats, wider aisles, and non-slip flooring. In September 2018, Metro issued a request for proposals from manufacturers for 256 railcars with options for a total of up to 800. The first order would replace the 2000 and 3000-series equipment, while the options, if selected, would allow the agency to increase capacity and retire the 6000-series.