We bought a Kings camp fridge for about $208 from 4WDSupacentre.com.au.

They seem to have a different sale on every 24 hours. The staff kindly brought a display model to the car so I could check the size. It just fits in the subtrunk.

We opted for the 30L model. We already had the 50L version on previous trips, but it’s a bit too big to manage in the car.

After trying the sub trunk and back seat, we eventually settled on the boot, since it’s easier to access, keeps the noise away from the passengers, and allows more packing space in boot, without worrying accessing the fridge in the sub trunk.

We’ll probably move it to the subtrunk when we sleep in the car. The boot cover leaves ample opening in either side for ventilation, as long as we don’t block the side wells. And the 12V power supply is conveniently located in the boot.