Frankly I miss the old school DC cam control propulsion system in the 1k cars. As later segment were added the train were allowed to strut their stuff. Back then WMATA ran the 1k cars like scalded dogs. It was not uncommon for trains to hit 65 MPH between Foggy bottom and Rosslyn and north of Dupont Circle. The stations in subway in my option looked cleaner without all of overly redundant signage, (I am a Massimo Vignelli purest), the passenger information displays, added exposed conduits and equipment cabinets on the ends of the platforms. I am also not a big fan of the stainless steel escalators. During the early years the people that ran and maintained the system felt like one big family.