not sure how it works for urine smells but scout pooped in my car the other day on our way to work. i was not a happy person to say the least but she must have really had to go to do it so i wasn't that mad. but anyway we have a product at work made by evsco called stain and carpet cleaner. i think thats the correct name. it took out the poop stains off my back seat like a miracle. i have never seen a product that works as well as that did. one spray and 1 wipe and everything was gone !! ask your vet or vets in the area if they have it or can order it for you. it works very well !!
you may want to get a bissel green machine. is the best $60 we ever spent, with pets and kids. i actually came home yesterday to 'look mom im sick' dirrahea on the SOFA! and the green machine got the poo and the smell out. they have regular fabric cleaner for it, and pet stain cleaner, and i always add natures miracle to the solution. it cleans deeper so it gets more out.
We had a cat that had a tail-pull injury that left him with loss of control over his bladder and bowels. That pretty much made him a permanent outdoor cat after being an indoor/outdoor cat. We made him a huge cage that he could stay in at night so he wouldn't get hurt by bears, fox or any other animals at night. We he still managed to get into the house and would lay on the floor. I have not had any luck getting the cat urine smell out of the carpet or the couch he used to try to lay on. I have used every product I could find and nothing has worked. I have been told that the smell of cat urine will probably never come out. Dog urine will, but not cat. There is something in their urine that makes it like that. If you find something, please post it, because our cat died over 6-months ago and the house still smells like it when you sit on the carpet or it gets rainy or humid outside. Good Luck!!
Try Simple Solution, Thats the one I used in my car. I just poured it in and let it soak into the seat. It has to reach every area that the urine has and let it dry by itself. My car no longer smells like cat pee. No on else would notice in my family, but I could. It's gone.