The Budd Metroliner was a class of American electric multiple unit (EMU) railcar designed for first-class, high-speed service between New York City and Washington, D.C. on the Northeast Corridor. They were designed for operation up to 150 mph (240 km/h): what would have been the first high speed rail service in the Western Hemisphere. Although 164 mph (264 km/h) was reached during test runs, track conditions and electrical issues limited top speeds to between 100 mph (160 km/h) and 120 mph (190 km/h) in revenue service. The single-ended units were designed to be arranged in two-car sets, which were in turn coupled into four to eight-car trains.

more info: https://en.wikipedia.org/wiki/Budd_Metroliner