[Clembo]

If the clear coat is intact and you can't buff it out it is more likely to be a factory defect in the base coat underneath. You may not have seen it before if the light wasn't just right or you didn't view it at the perfect angle. I've seen this on a lot of newer cars, typically domestics in bright colors with a lot of metalflake or pearlized finishes. Looks like the paint gun sputtered leaving out some of the base coat. Usually picked up on the line in QA, sometimes they miss for the same reason you never saw it until now.

Just a possibility... I've been detailing my Mustang for years and I'm still finding new places where there are aberrations in the paint.