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Marmaray uses TCDD E32000 rolling stock manufactured by Hyundai Rotem in ten-car and five-car EMU configurations. The original contract called for 440 vehicles to be produced locally by Eurotem, Hyundai Rotem's joint venture with Turkish rolling stock manufacturer TÜVASAŞ. Hyundai Rotem was chosen ahead of Alstom, CAF, and a consortium of Bombardier, Siemens, and Nurol.