You can pick Metro's new 8000 series train design

• The public can vote online until midnight Friday on one of three design options for the rail car's exterior.
• Each variation features "M" for Metro on the outside in different styles.

Between the lines: The biggest changes will be inside the trains, with heated floors, better lighting, and "open gangway" style seating to provide more passenger space and free movement between cars.

• Plus, Metro just announced it saved $21 million from the 8000-series project, putting that money to use elsewhere.

What's ahead: The trains are projected to enter service in 2027.