Yeehaaw, finally we found the right car for our adventure here in Australia and we bought it straight away. It is a Nissan Pathfinder 4-Wheel from 1994. We had to invest a little bit of money and work in it but now the car is ready to go.
The people who owned it before us were Germans as well and were nice enough to leave us with a lot of useful stuff like camping chairs, gas-cooker, tools and a tent for up to 10 people!!!
We really look forward to go traveling with that car and keep you guys up to date.
Here is a little gallery about our car: