Some Plymouth advertising you might also enjoy and probably haven't seen before http://justacarguy.blogspot.com/2010/01/incidental-road-runner-advertising.html
http://justacarguy.blogspot.com/2009/07/plymouth-advetising-campaign-ive-never.html and http://justacarguy.blogspot.com/2009/06/one-fun-advertisement-id-love-to-talk.html
And the wonderful brochures from Plymouth: http://justacarguy.blogspot.com/2009/06/1970-plymouth-barracuda-brochure-high.html and http://justacarguy.blogspot.com/2009/07/id-never-seen-this-brochure-cover-like.html