I'm thinking about getting a Chevy HHR, 07 with 25k miles for 6.5k from my work. Only problem with the vehicle is the interior. The back seat is destroyed with strains in the carpet of the floor. Some of the stains are hard and flake with the fingernail. I was just curious as to if anyone knows of any cleaners. I will post pictures of the carpet tomorrow for reference...thanks in advance!