Over 10 years with kids in a Caravan and only crumbs to vacuum up (no liquids spilled on the seats). Get a new Mazda 3 and over goes the thermos of mini-wieners (tiny hot dogs) in water. Car doesn't smell yet but I would like to take care of it before it does. It would probably be best to remove the seat and clean the foam separately from the black "cloth". Anyone know the trick to removing the rear seat? Any recommendations on what to use to clean it. There is no mark so it is not a matter of looks.