Wyn, I really dont have a problem with how it is now..
I think if we have every make/model of car it will just create clutte. also i enjoy going into say the 'Integra' section and reading bout everything from DA's to DC5's. I think if everything was sectioned into make/year/model etc, i would probably not read as much from other users.
In saying that if there was sections/sub forums for makes/models it would be easy to find what your after..
PLUS each group could do like a photo comp, so each month or so when you click on that sub forum it will load with a pic of 'the car of the month' that would change things up a bit and keep members interested in submitting photos and voting for photos they like.

So pros and cons either way