In 2012, EPTM took delivery of a new low-floor trolleybus built in Argentina by Materfer, which EPTM had helped to design.Trolleybus Magazine No. 309 (May–June 2013), p. 72. It entered service in June 2012, at which time 47 Flyer trolleybuses were considered serviceable.Trolleybus Magazine No. 305 (September–October 2012), p. 148. Additional new Materfer vehicles were purchased subsequently, and a total of 13 were built, but only 12 ever entered service.Trolleybus Magazine No. 340 (July–August 2018), p. 146.
