Add content to GUILayout.Window

[anon49164671]

How do I add content to my GUILayout.Window, here is my code, I want to add a few sentences into the window before the button:

var windowRect : Rect = Rect (20, 20, 120, 50);
private var carName : String;
private var carDesc: GUIContent;

function OnGUI ()
{
   windowRect = GUILayout.Window ( 0, windowRect, DoMyWindow,
                                   carName, GUILayout.Width (300));
}

function DoMyWindow (windowID : int) { // This button will size to fit the window
  if (GUILayout.Button ("Select Car"))
    print (carName + " is selected, move to track selection scene.");
}

[DaveA]

Use GUILayout.Label before the button