Factory paint, wet sanded & buffed?

[southernfriedcj]

I know there are folks here who have actually worked(or still work) for GM. Out of curiosity, back in the day(and even now) do new cars get wet sanded and buffed at the factory?

I have seen many pictures over the years of cars being painted at the factory but I've never seen a picture of a car being sanded and buffed at the factory.

Thanks!