How to get a bad smell out of car

we bought my daughter a used 2006 infinity G35 a year ago. it had a weird smell but the guy selling it said he could not smell it and my husband has no sense of smell.well it is really bad! i have identified it but don’t know how to get rid of the smell. i think someone put a bottle of bad cheap perfume in pouch behind passenger seat and it broke spilling all over carpet. i have had carpet shampooed alot and unzipped seat cover and scrubbed. i have tried everything odereater,baking soda,vinegar,febreezeetc. also the thing they get smoke out with and replacing a/c filter. any suggestion?

maybe this will help…http://www.ehow.com/how_155767_remove-mildew-odors.html