The Lionel 60 Lionelville Motorized Rapid Transit Trolley Car from 1955-58. It features bumpers on each end that cause it to change directions whenever it runs into anything, like a bumper. It features interior illumination, a reverse unit, operating function and silhouetted window strips. When the direction changes the trolley pole on top also spins around to the proper trailing position. It was a real postwar favorite and Lionel has remade it in several varieties over the years.