PURPOSE: To approximate tracks for running model cars at corner sections to actual tracks.

CONSTITUTION: The apparatus is constituted by a plurality of chains 115... each rotating along a plurality of individual tracks 114... formed on a certain revolving track 14, an inner rail 15 formed on the inner side of the revolving track 14, and a plurality of model cars 25a through 25d that move on the revolving track 14 being pulled by hauling ropes 21... stretched from part of each of the chains 115..., and being regulated by the inner rail 15. Each of the model cars 25a through 25d is formed with a rubbing surface 27 whose cross-sectional shape is nearly a shape of spindle, and can rub mutually with other model cars 25a through 25d around its surface.