How do i make my terrain objects receive light from cars?

[Miner34]

I'm creating my first map and want the road to receive light from vehicles, like in the muttly oval track map.
This is my material:

import * from "managed_mats.material"

material roadmaterial: RoR/Managed_Mats/Base
{
    technique BaseTechnique
    {
        pass BaseRender
        {
            //Ambient, diffuse, emissive stuff here

            texture_unit Diffuse_Map
            {
                texture road_texture.png
            }
        }
    }
}

What is wrong with it?