Go-faster, and some...design straight to the fast lane! These motor racing posters from the 1950's onwards are...well let's just say, wow.
http://vpracing.com/
http://www.pelicanparts.com/literature/literature_posters2.htm
http://www.monoscope.com/2010/10/porsche_poster_porschesieg_300.html
http://beyondtrend.blogspot.com/2009/04/vintage-porche-posters.html
http://www.iainclaridge.co.uk/
http://grainedit.com/2009/04/09/vintage-porsche-posters/
http://www.flickr.com/photos/nostalgicphotos/
http://www.ferraristuff.com/contents/en-us/d516_Ferrari_250_Testa_Rossa_58_SN...