Did OEMs wet sand and buff paint?

I used to own a 66 Belvedere that was my grandfather's car.

From the factory, it had massive paint runs under the hood and along the firewall. While the rocker panels, door bottoms and fender bottoms had almost zero paint on them and quickly rusted out.

I think you got whatever you got from the factory.

I had my Duster painted in a single stage, trying to stay true to that era, it has flaws but still looks better than it originally would have.

Most of the car has been rubbed out, the roof still could use some work but overall it looks great in the sunshine.

Paul