I cleaned my carpet for my cabriolet, as i had to acquire it from a cabriolet at the scrappy which had been there a good couple of months with no roof etc, so you can imagine how mingin it was (my mates saw me while i was getting it out and were taking the piss

)
Warm water, fair liquid, and a scrubbing brush.........and it was like new
I did have pictures but ive lost them all due to some cheap DVD-R's