Shipping vehicles with inner cargo
Inner cargo is any parts or additional items shipped within the cabin or trunk a car, but not part of the car itself. This would typically include things for example such as a spare set of wheels, a spare exhaust, or anything else which might come with a car but is not actually attached to it. What is acceptable as inner cargo regularly changes and we've seen a variety of different policies accepted by Australian customs as well as shipping lines over the years, so please note this is subject to change.
The current status quo is that inner cargo is acceptable as long as it appears to be relevant to the car it is in. So for example a spare set of wheels which match the car they are in is ok, a Delica being shipped with a Skyline body kit is not. There have been times when no inner cargo is permitted either by shipping lines or customs so this may be subject to change in future, but at present as a general rule if a car comes with spare parts you will be able to ship them inside the vehicle.