Is there a fix for the pitted headlight covers on a 575?
David below is a copy & paste of a post I made a while back on another forum, it's one answer to your question. Will also note that in the Corvette world C6's in particular, there are people reproducing and replacing the lens covers commonly. Perhaps an option for at least doing a swap of lenses, if you can find a good one, until someone reproduces ours.
" there is only so much polishing and sanding that our headlights will take before you break through a protective coating. There are professionals out there who will re spray a clear coat over the lense after sanding it further to get back a uniform surface. There is also a kit available through body shop supply houses to do this.
Call one of these shops or a high quality body shop in your area asking for recommendations. You want someone experienced with this process as its not exactly the same as just spraying a clearcoat over the lense. Done properly, you should not be able to tell the difference between oem and restored."