On Sun, 16 Jul 2017 20:56:27 -0400, Ed Pawlowski wrote:

Nothing will make them as good as new.

That seems like pragmatic advice.
The news ones aren't all that expensive either.
But to a kid they are.

My neighbor used a kit on his kid's car. Based on his results I'd try it.

Thanks. It is, after all, only elbow grease and toothpaste, and a wax on
the plastic when done.

Much better than the dull they were, but not brand new.
I don't know what brand he ised

Thanks for that assessment.