The interior of S-Bahn cars, used on route S6 (Koln-Nippes ... Essen-HBF)
These S-bahn cars do not have own traction motors, they are either pushed or pulled by locomotives.
<br>In S-Bahn cars with <b>organge walls</b> - doors are opened by handles 
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Digital photo by Gregory Kats <a href="http://www.dgmaestro.com">www.dgmaestro.com</a>