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The Suburban Fleet (Turkish: Banliyö vagonları, also known as pierced bellies (Turkish: Karnıyarık)) were passengerrailcars used by the Turkish State Railways on their suburban rail operations mainly in Istanbul, Ankara and İzmir. Those cars are kept in the depots as a last resort in emergencies.
A couple of Regional Cars on a side track at Haydarpaşa Terminal