A woman's hands and feet were severed before the car she was thrown in was set ablaze.
The body of 18-year-old Ariki Rigby was discovered by a dog walker in early September in a remote part of Havelock North, a town in New Zealand's North Island.
Officers initially mistook Ariki's mutilated body for a sheep carcass, and the car she was torched in was set to be scrapped.
