For more take a look at the "Parts with appeal" http://justacarguy.blogspot.com/2009/06/parts-with-appeal-its-been-referred-to.html
and http://justacarguy.blogspot.com/2009/05/when-ads-were-rated-r-part-3.html
plus http://justacarguy.blogspot.com/2006/11/when-ads-were-rated-r-1st-of-3.html http://justacarguy.blogspot.com/2006/11/when-ads-were-rated-r_21.html ,and http://justacarguy.blogspot.com/2006/11/when-ads-were-rated-r.html