Budd Metroliner
 The Budd Metroliner car was a married pair electric multiple unit (EMU) train designed for first-class high-speed service on the Pennsylvania Railroad's route between New York City and Washington DC. Built between 1968 and 1969 they operated in eponymous service on the Penn Central beginning in early 1969 (after the Pennsylvania's merger with the New York Central) and continuing under Amtrak after the latter's 1971 creation.