When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If there was a Pace Car section, it wouldn't be long before folks would be wanting a Grand Sport section, a Ruby section, and an Anniversary section.
There are plenty of sections now and it might be too "clunky" if other very specialized car sections appear.
Paint and Body is a little different in that discussion in there covers all years and all body styles. Maybe fewer people frequent there because the work is so specialized and few people actually do hands on stuff. Looking around, there a a number of technical sub-forums that don't get a lot of posts in them, but that doesn't make them less valuable.
Just my $.01 (the bad economy keeps me from using all $.02 )