Of these cars, No. 46 survives, along with line car No. 401 from the original order; both of which are preserved at the Electric City Trolley Museum in Scranton, PA. Prior to the move to Scranton, they ran as a two-car train while in operation at the Philadelphia Waterfront every Christmas season for many years as the "Santa Train," with No. 401 operating as Santa's workshop and No. 46 used for the passengers. One type of vehicle used for this line were two 4-unit articulated train sets called "Liberty Liners", which were originally the Chicago North Shore and Milwaukee Railroad's Electroliners. These shovel-nosed high-speed trains featured a bar car and were capable of speeds exceeding . They were built by the St. Louis Car Co. in 1941. The Philadelphia Suburban Transportation Company bought both of these trains in 1963. PST removed their trolley poles and replaced their original gravity-type over-running third rail shoes with paddle-type shoes. They were repainted into Red Arrow's color scheme and run in rush hour service with the bar serving continental breakfast in the morning and serving snacks and spirits in the afternoon. They were retired in 1977 due to excessive power consumption plus their excessive weight was just too much for the old 75 lb. jointed rail. As of 2006 they were in museums: one, restored to its original Electroliner appearance, at the Illinois Railway Museum, and the other in her Red Arrow colors at the Rockhill Trolley Museum. Another type of vehicle was the "Brill Bullet", which ran in service from 1931 almost to 1990. Though tested at more than , these regularly ran at in regular passenger service. These streamlined electric multiple-unit passenger cars were the world's first-ever high-speed "Bullet" trains, and their design influenced later streamlined trains built in the U.S., Belgium, Germany, and Japan. Built during the Great Depression, they were the first railroad equipment ever designed in a wind tunnel in order to lessen power consumption while quickening schedule timings. And they did just that, cutting Norristown Express schedules by up to a third, from 24 to only 16 minutes while consuming some 40% less electric power than the MU equipment they replaced. See also Bullet (interurban). A third and older type was the "Strafford Car," built between 1924 and 1929. The last Strafford Car was retired on March 30, 1990. These MU's originally had bulkhead doors to permit passengers to walk from car to car, high-mounted headlights, trolley poles, and vestibule steps.