Just watched fast and loud and they were trying to match 20 year old paint. It was a PPG color originally and they got the paint from them. Didn't match. They talked to the original painter and the paint calls for a white base, but he used dark gray, but also the EPA forced a change in the paint itself so it sprays out a different color. So, just because its the "wrong" color, it could be the primer is different or the paint composition has changed. Or its just wrong.
