You hadn't previously said which part of his answer was correct. You still haven't ![Wink ;)](https://www.autopuzzles.com/forum/Smileys/default/wink.gif)
But you should know which part is correct after my reply!? Only wanted to give another clue.
It's not a Jewitt Holden, but it was first equipped with a Holden motor. Later it got a rather plain engine, quite exotic for cars of that kind.