Total possessions — type of car (6)
I believe the answer is:
estate
This clue is a double definition.
'total possessions' 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 "Property left at death" , "All of one's assets after death" , "My wealth" , "All money and property owned at time of death" , "Plantation" .)