I just created a tag called "Title" but we've chosen not to use it previously. We have lots of specific titling questions. Should we have this tag?
adding the single tag title is problematic.
In the United States the word title also applies to real estate questions. We have many questions about adding people to a house title and the purchasing of title insurance.
Now we do have a tag for title-insurance but we do have real estate questions that mention title but aren't concerned about title insurance.
I'm going to propose this separately for voting purposes, though you can assume most of what mhoran_psprep's post says here: I think title is ambiguous, so we need one specific for [things that you drive].
I think vehicle-title is the best tag title, because it's the most common phrasing (see for example this page, and this wikipedia page). Googling "car title" brings up Vehicle Title pages, for example.
I agree that we do need a tag for it, because (at least in the US) vehicle title is something that often comes up on its own merits in financial activities, between title loans and vehicle sales, both of which are commonly done by individuals without any representation. House titles perhaps should also get a tag, though usually those come in context of other things AND have a representative of some sort (lawyer or real estate agent) in the mix; if we did have a tag for that, I would suggest something appropriate as well that was more generic than house-title, but I won't include those suggestions here to avoid muddling the voting.
We could use car-title and house-title, but those terms are not precise and are not commonly used anywhere. Titling is for property, and cars fit in that category. Many categories of real estate have nothing to do with houses. I don't think it would be terribly confusing to have some real-estate questions as well as automobile/boat questions all sharing a title tag.