Pennsylvania RR #860, a Budd Metroliner, built in 1968
The Budd Metroliner car was designed to form an "electric multiple unit" train for first-class, high-speed service on the Pennsylvania Railroad's route between New York City and Washington, DC. The Metroliner program was originally a partnership between the Pennsylvania Railroad and the US Department of Transportation. The first two test units were delivered in 1968 and achieved a top speed of 164 mph (264 km/h). #860 was built in 1969 and thus was one of the first units in regular service. When Amtrak took over the service in 1971 these were still in use, so this unit is one of the original Amtrak electric locomotives.