VehicleBody script doesnt work for me

Dear friends,
why doesnt the VehicleBody work for me? What am I doing wrong?

This is my .blend file:

//Im using Blender 2.79…VehicleBody template works fine, but when i get script to another scene, it doesnt work.

///Hello again, problem solved. I had to add a plane object as rigid body and VehicleBody script working.