I sprayed Lizard Skin in my 32 3W. Then I used Dyna-Mat ... my coupe has Vintage Air and you can hang meat in there with the A/C going
Before Lizard Skin on the door.
With Lizard Skin sprayed on the door.
I did the entire coupe. The floor, roof, doors and the trunk. The coupe is quiet inside and well insulated. Not cheap ... but well worth the $$$ in my opinion.