Originally Posted by Rockledge
You can indeed paint carpet using a product like SEM's Color Coat:
You can find it in spray cans at most automotive paint stores. Look in the yellow pages.
I would think going from gray to black would be one of the easier transistions to make.
you can go this route, but i wouldnt recommend it. it will change the texture of your carpet/headliner from nice to nappy ;o)
i tried using dye AND vinyl/fabric spray and just didnt get the nice results i wanted, so i ended up buying new black carpet and having my headliner reupholstered.
painting/dying would obviously be cheaper, but its definitely not the best way to go if you really want the interior to look great. save your money and do it right the first time!