fixed towing hitch
year of construction 1994 - 10.2002

removable towing hitch
manual system of levers, stuck from behind
year of construction 1994 - 10.2002

removable towing hitch
totally automatic, stuck from the bottom
 from year of construction 11.2002 - now

specific to the vehicle electronic set,  from year of construction 01.1999 - 10.2002

specific to the vehicle electronic set,  from year of construction 1994 - 12.1998

specific to the vehicle electronic set,  from year of construction 11.2002 - now