Landed property - type of car (6)
I believe the answer is:
estate
I believe this is a double definition.
'landed property' is the first definition.
(I've seen this before)
'type of car' is the second definition.
(I've seen this before)
(Other definitions for estate that I've seen before include "Demesne" , "Group of suburban houses or industrial units" , "Extensive landed property (6)" , "Amount of land - type of car" , "Property and possessions of the deceased" .)