R/C Car Help

Yeah, Im tryin to make a Remote control vehicle, and I think Ive got all the parts i need but I tried to do a simple thing and it fails to work, can anyone help me iron out the glitches? Oh and heres what I got in my script so far

float forward_power = 30; //Power used to go forward (1 to 30)
float reverse_power = -15; //Power ued to go reverse (-1 to -30)
float turning_ratio = 4.0; //How sharply the vehicle turns. Less is more sharply. (.1 to 10)

default
{
    state_entry()
    {
        //car
         llSetVehicleType(VEHICLE_TYPE_CAR);
         llSetVehicleFloatParam(VEHICLE_ANGULAR_DEFLECTION_EFFICIENCY, 0.2);
         llSetVehicleFloatParam(VEHICLE_LINEAR_DEFLECTION_EFFICIENCY, 0.80);
         llSetVehicleFloatParam(VEHICLE_ANGULAR_DEFLECTION_TIMESCALE, 0.10);
         llSetVehicleFloatParam(VEHICLE_LINEAR_DEFLECTION_TIMESCALE, 0.10);
         llSetVehicleFloatParam(VEHICLE_LINEAR_MOTOR_TIMESCALE, 1.0);
         llSetVehicleFloatParam(VEHICLE_LINEAR_MOTOR_DECAY_TIMESCALE, 0.2);
         llSetVehicleFloatParam(VEHICLE_ANGULAR_MOTOR_TIMESCALE, 0.1);
         llSetVehicleFloatParam(VEHICLE_ANGULAR_MOTOR_DECAY_TIMESCALE, 0.5);
         llSetVehicleVectorParam(VEHICLE_LINEAR_FRICTION_TIMESCALE, <1000.0, 2.0, 1000.0> );
         llSetVehicleVectorParam(VEHICLE_ANGULAR_FRICTION_TIMESCALE, <10.0, 10.0, 1000.0> );
         llSetVehicleFloatParam(VEHICLE_VERTICAL_ATTRACTION_EFFICIENCY, 0.50);
         llSetVehicleFloatParam(VEHICLE_VERTICAL_ATTRACTION_TIMESCALE, 0.50);
    }
    
    touch_start(integer start_param)
    {
        llRequestPermissions(llDetectedKey(0), PERMISSION_TAKE_CONTROLS);
    }
    
    run_time_permissions(integer perms)
    {
        integer desired_controls =
                CONTROL_FWD |
                CONTROL_BACK |
                CONTROL_LEFT |
                CONTROL_RIGHT |
                CONTROL_ROT_LEFT |
                CONTROL_ROT_RIGHT |
                CONTROL_UP |
                CONTROL_DOWN |
                CONTROL_LBUTTON |
                CONTROL_ML_LBUTTON
        ;
 
        if (perms & PERMISSION_TAKE_CONTROLS) {
            llTakeControls(desired_controls, TRUE, TRUE);
        }
    }
 
    control(key id, integer level, integer edge)
    {
        integer reverse=1;
        vector angular_motor;
        
        //get current speed
        vector vel = llGetVel();
        float speed = llVecMag(vel);

        //car controls
        if(level & CONTROL_FWD)
        {
             llSetVehicleVectorParam(VEHICLE_LINEAR_MOTOR_DIRECTION, <forward_power,0,0> );
            reverse=1;
        }
        if(level & CONTROL_BACK)
        {
             llSetVehicleVectorParam(VEHICLE_LINEAR_MOTOR_DIRECTION, <reverse_power,0,0> );
            reverse = -1;
        }

        if(level & (CONTROL_RIGHT|CONTROL_ROT_RIGHT))
        {
            angular_motor.z -= speed / turning_ratio * reverse;
        }
        
        if(level & (CONTROL_LEFT|CONTROL_ROT_LEFT))
        {
            angular_motor.z += speed / turning_ratio * reverse;
        }
        
        llSetVehicleVectorParam(VEHICLE_ANGULAR_MOTOR_DIRECTION, angular_motor);
        }
}