The tramper earlier gave police a number plate of one of the vehicles - a 1974 Morris saloon - which was registered to a Wanaka owner and reported stolen in 2004.
It looked as though the cars had been there for some time, meaning there would be no forensic evidence left and how they got there would most likely remain a mystery.
"They were covered in a lot of regenerated growth.''
Snr Const Tvrdeic managed to get the vehicle identification numbers for four of the cars and would check whether those had also been reported stolen.
It was not unusual to find the odd dumped car in isolated forest areas, but he had never seen so many in one place.
Nothing suspicious was found in the vehicles they were able to be reach.
The cars would be left where they were because the area was so difficult to get to.