P71 police car rubber floor question

Anyone know what is used to rubberize the floor on the p71 and other police package vehicles?

weight wise, do you think carpet or rubber is heavier?

Carpet should be a ton lighter than the rubberized stuff I think. They prolly just use a rubberized undercoating, similar to some truck bed coatings.

Upol Gravigard, or if you have a schutz gun use Gravitex. Shit bites on like epoxy primer and is light and stupid tough.

Price per gallon? I should shoot my car trailer in that shit!