+A train car, or railcar, is a wheeled vehicle designed to run on a [railroad track](/wiki/railroad_track). These units, carrying passengers or freight, link together to form a [train](/wiki/train), moving across vast distances. Each car serves a specific purpose, contributing to the journey's function.
+## See also
+- [Locomotive](/wiki/locomotive)
+- [Freight](/wiki/freight)
+- [Passenger Car](/wiki/passenger_car)
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