Carbon fiber is good if it has enough section depth to stiffen it.
Even fiberglass well reinforced lends to bow with age and being exposed to hot sun accelerates the transition.
The front "boot" cover on a Pantera is not an item that you want to make out of carbon fiber. The best material for it is steel and even there you can see the transparency where the skin has been rolled over the spider and if you aren't careful with it, you will rabbit ear the corners.
The only quality way to make those panels is to make the spider support thick and heavy, which kind of negates the entire reasoning to begin with in my opinion.
The support spiders on the Pantera deck lids are very shallow and probably has a lot to do with why the aluminum skins where mounted over the steel spiders rather then stamp the spiders out of aluminum too.
I can see those panels not lasting over race conditions at all.
Probably the thing to do is have the doors, decklids, etc made out of titanium sheet.
Private and industrial use of titanium has become less restricted and the material more affordable and available since the dark ages of the late 60s and early 70s.
Its use was restricted due to national security back then.
Wouldn't want no Ruskies buying up race Panteras to make Mig29s out of now would you?