All right, I've posted this on 9 different automotive forums I frequent, and I've been trying to answer comments from all of them. lol
So far, though suggestions, I've added about 5 categories and tweaked the way tags are handled.
Then someone on a corvette forum completely broke the database through a small exploit, so I've hardened the security on all DB entry points.
It's had over 500 unique visitors in the past hour or two.