The Jabiru is literally the worst aircraft I've ever flown. So cramped, uncomfortable and slow. I really can't think of one good thing to say about it.
Just look at how close the two of them have to sit, and the total lack of space to move their legs or feet.
This could easily be real, the Jabiru engine is just awful, the one I flew with cut out twice, and then had some serious oil pressure problems before it was scrapped.