This is certainly something that can be looked in to. Are you talking specifically about the Classifieds? Or do you mean the whole forum?
How does the rest of the community feel?
Is there more of a push for separate sections for models? (keeping in mind, more forums can cause more confusion)
Or would thread prefixes work? (a label for your thread, so it looks like this is the list of threads: "[MODEL] Your Title Here")
Or do you prefer things the way they are?
If there's enough interest for change, we'll bring it to the mods for their feedback and see what can be done.
Classifieds & Technical forums both would be good. Thread prefixes would be fine (if searchable, that's significant). You can look at any of them at present and see the confusion - a very common first reply is "What kind of car?"