IROC Z

Simple spring driven car.

• Pull backwards and release for car to move forward.
• Powered by energy stored in a torsion spring.
  • Simple geartrain to convert energy
• Ages 4+. The only concern is with small parts breaking off.
• Children can race multiple cars or try to overcome obstacles such as jumps.
• It can be made of materials to suit cost. Plastic would be cheap but not as durable as a metal.
  • Accesories can be made interhcanable such as spoiler, wheels, decals.