I know you don't hate it, it's impossible to. I guess you're right: a forum for Italdesign, etc. But then you do need continental forums for the smaller makes.Espcially Italy, which inludes Italdesign, Pagani, and other small companies.
I am thinking of making a Pagani Zonda Enthusiast page, w/ a forum maybe, pictures, stats, links, etc., but I am not sure. For the best site, just go to
http://www.modena-design.it , which is their official site.