Matching a single stage metallic, especially with old paint is all but impossible for several reasons

1. Paint technology has changed drastically in the last 5+ years not to mention the previous 15 years. The older the paint the harder the match becomes.
2. Metallic's a very dependent on the paint itself, the painter, the gun used, the nozzle size, the pressure, the distance, the way it's Sprayed
meaning technique by the painter etc..

Now are we going to try to get a PERFECT match at a hard line or try to Blend into an adjoining panel ?? Factory peel and flaws or Glossy perfect? Want it to appear untouched ??

One might be better off playing the LOTTERY. My