To provide a train car composition offering excellent ride comfort for passengers in which the train can stably make a turn on a curved part of the small radius of curvature.

The composition comprises at least two cars, each car comprises a carrier module fixed to a guide holding means on a rail and an intermediate module held by the carrier module before and behind in its traveling direction. The carrier modules and the intermediate module are connected to each other by means of single-articulation connection devices turnable around an axle perpendicular to the road surface. The car and the adjacent car are connected to each other by a dual-articulation connection device turnable around two axles perpendicular to the road surface. A preferred embodiment of the dual-articulation connection device has two axes with one axle being connected to the other axle via a connection rod.