Obviously I'll do a test run somewhere hidden before I do the whole lot, but I'm wondering how well it will work.
I'm on Easter holidays at the moment so have some time to kill

Before any of you say: I don't have a pressure washer, not going to rent a Rugdoctor thing. At least not tomorrow.
This Vanish jobby is just what I have to hand.
Carpet isn't in the car either so that's not a problem.
Or does anyone have any alternatives?
Also about removing/refitting a carpet:
Sill things out, seats out, centre console out, I know that much

The bottom anchor point bit for the seatbelt, what do? Had a look earlier when I was queueing for petrol but didn't do a proper investigation. Did look to see if there was anything on here but couldn't find. I'm sure it's obvious once I actually look properly though.