function GetLocalPlayerVehicle()
{
    if(!::localPlayer)
        return;

    local vehicle;
    for(local i = 0; i < 1000; ++i)
    {
        vehicle = World.FindVehicle(i);

        if(!vehicle)
            continue;

        if(vehicle.GetOccupant(0) == ::localPlayer)
            return vehicle;
    }
    return null;
}

// -----------------------------

function Script::ScriptProcess()
{
    if(!::b_startProcessing)
        return;

    if(!::b_startGUIProcess)
        return;

    local vehicle = ::GetLocalPlayerVehicle();

    if(!vehicle)
        return;

    local speed = vehicle.Speed;
    local speedMagnitude = sqrt( speed.X * speed.X + speed.Y * speed.Y + speed.Z * speed.Z );

    m_GUITopSpeedLabel.Text = "Speed: [#44cc44]" + (speedMagnitude * 70 * 3.6).tointeger() + "[#ffffff]km/h";
}