Warning, this subject is old (5638 days without answer)
Kooshmeister
Finally got the DVD of this (under the title War of the Monsters). The quality isn't that good but it's still better than what I submitted previously.
Jeep used by the Japanese doctor in New Guinea. Already listed, but better pic. 2 stars.
Jeep (different model than one listed above) used by the heroes in one scene. Mitsubishi J3R? 2 stars.
Odd little car used by the villain, Onodera, in one brief scene. It has a vaguely Volkswagen Beetle shape, but is apparently a sedan with front suicide doors. 2 stars.
There's also a very large amphibious troop carrier type vehicle used by the military in their attempt to lure Barugon into a lake and drown him, but sink me, we never get anything even resembling a decent full-body shot of it.