1965 Dodge Dart Charger

Probably worth talking to REM Automotive about their trunk mats; I think they make the ones sold by Dante's as described here. I think they are probably going to be the closest you can get to the original -- if your '65 original is anything like my '62 original, it's a weird material with a rough texture on the back, kind of like a soft version of linoleum. I've never seen such a material offered in the aftermarket.