I agree. I had a dog pee a lake in my back seat a few years ago. I took the cushion out and watered it down good, let it sit in the sun for three days, tried vinegar and let it dry........no luck!
Poured half a bottle of Simple Solution on it and in a few days all of the smell was gone.

It takes a little time for the enzymes to work so be patient. And be sure to use enough to soak the stain.

(I still have the car)

Mary