A toy train system providing a plurality of sections of rigid and flexible track members and a switching device for selectively connecting one of the members together. The switching device includes a pair of stationary rings and a rotatable ring with the flexible pieces of track extending between them and selectively registerable with the rigid track members at one of them. Self powered cars are equipped to travel the tracks in upside down condition, upright or on their side, the tracks being especially formed to receive the cars and maintain their security regardless of their oriented condition.