4) Car modelling here: http://forums.polyloop.net/tutoriaux-amapi/5150-ap-7-x-vieille-cox-nurbs.html
it's not MoI , but it can be easily converted.. it's just NURBS modelling

Another nice example of NURBS here: http://www.etereaestudios.com/training_img/sentinel_tutorial/pages/sentinel_intro.htm#