[Tagging] Non-parking car lots

[Steve Bennett]

In an area I'm working on, there are a few car factories, with huge
lots of cars awaiting distribution. It's not really a parking lot, and
putting a P on the map would be confusing to anyone looking for
parking. Suggestions?

Same would go for used car salesyards.

And while I'm at it, how to tag carparks that are clearly not for
public access? Staff carparks, carparks in government buildings...