Check this out from our friend Egon - the semi is rendered in KeyShot, the rest retouched:
(http://www.keyshot.com/images/CO_State_Police_3D_Unit.jpg)
And watch the video:
http://www.9news.com/video/default.aspx?bctid=374791039001
Amazing :)
Now that's how it's done. Great work EGON !!!!
Tim
But the mithbusters showed us how to conserve fuel by tailing a truck ......... :-\