37160 - Motor homes built on purchased chassis
3716001 - - Motor homes: Conventional (type A)
3716005 - - Motor homes: Chopped van (type C)
3716007 - - Motor homes: Van camper (type B)
3716021 - - Motor homes: Converted vans not qualifying as van campers (type B) motor homes (excl custom conversions of Vans)
3716XX0 - - Motor homes built on purchased chassis (Miscellaneous - Volume)
3716XX2 - - Motor homes built on purchased chassis (Miscellaneous - Speciality)