Takara Tomy TP-04 Tecology Series Pla-Rail Type 923 Doctor Yellow

If you roll it by hand, the built-in generator will generate electricity and the light will turn on.

If you roll it forward, the headlights will turn yellow, and if you roll it backwards, the taillights will turn red.

It can be connected to a normal Plarail with the rear coupler and run.