Toy vehicle booster and track set

摘要

A booster for accelerating toy vehicles. The booster includes a rotation source and first and second wheels operatively coupled to the rotation source. Each wheel includes a thin-walled member configured to engage toy vehicles passing between the wheels as the rotation source rotates the wheels in opposite directions. The thin walled member is characterized by an S-shape that allows the relative distance between the wheels to change, thereby accommodating differently sized vehicles.