Paint codes for Ferrari / Porsche?

I've trying the search engine with no result.

I would like to have guides or lists of colors used by Ferrari and Porsche with PPG or Dupont codes. Anyone knows some webpage?

Thanks.

Here are a few examples I found doing a quick Google:

Ferrari (http://www.ferrariclub.com/faq/colors.html)
Porsche (http://www.356-911.com/modelinfo/911colours/911colours6970.htm)
Also try the paint formulation search engine at Standox (http://www.sxcolor.info/scripts/colorinfo.dll/getpage?b=1&m=001&l=3&page=home )