Washed it, then three applications of Meguiars cleaning wax and a microfiber cloth. It was nearly dark as I was taking off application two so three was the following day, mostly fixing what I missed on the second run.
Pain in the rear, getting that first coat off, but it sure improved it.
The paint surprised me, seems like most of the time paint likes to blister and peel if its been neglected. I've got a few tiny bubbles on the roof and quite a few paint chips, but the oxidized layer just rubbed right off.
Not the original VW paint, it was originally a green bug.
Picture of the bumper as well, before
(bumper was done before the wash/wax).