All of the railroad cars that belong to Nara Train Depot were transferred from other lines (Keihanshin Local Train Line, Osaka Loop Line, Katamachi Line, etc.), while on the Kansai Main Line, there has been no setup of a new commuter train since the tracks were electrified.
奈良電車区所属の車両はすべて他路線（京阪神緩行線、大阪環状線、片町線など）からの転入で、関西本線には電化以来一度も通勤型新車投入がない。