what do dealers use for shampooing carpets?

[colinc]

It seems like new car dealers do a nice job of detailing their used vehicles (some of them). I recently went to a Nissan dealer and looked at some used maximas, they all smelled at least a little like new Nissan. Even the ones with cloth interiors were smelling great. I would imagine that it probably has something to do with the carpet and upholstry shampoo they use in their carpet extractors. Anyone know what a popular shampoo is for dealers? I'd like to get my cars smelling somewhat new again.

[Scottwax]

I use Magnum upholstry shampoo. I get it at Progressive Surface Care in Dallas, Texas (800) 225-1247. They are putting together a website, but last I heard, it wasn't online.