I know, maybe I'm a little behind, but I just started using this stuff about a week ago. I love it, the bottle will spray as a stream, spray, or foam. I use it for my rims, floor mats, engine bay, even dog crap that was stuck to the wife'* shoe.
Grime just disolves and washes away, so much better than regular simple green.

Floor mats? as in on the cloth OEM mats?

is used it on the cloth mats and carpet.

Sorry, no. I have rubber aftermarket mats. New England is not cloth floor mat friendly
I'm not saying you couldn't use it on the cloth, I haven't used it myself on cloth though...

Simple Green is good stuff. It can even clean up messes from a college apartment.