will depend on what the car is and its condition, as size does make a difference
if its driving you can do roll on roll off, if not rolling then a container is the only option
cars before 1988 are fine after that you need to get full compliance which can be cheap if a popular model like a skyline or evo $2000 but niche model like minis or ferraris can range fron $4500 to 12k
containers from the uk arent that cheap if you want it done properly and professionally dont expect much change from 3500pounds, and the costs and regulations incurred once it reaches OZ will cost at least $2k plus duty/gst
most cost effective would be to put the goods in with someone else that has space left in a container,if your not in a hurry we may be able to help you out on that front as we might have some space left in our next container due to leave in 4 to 8 weeks time (will of course depend on the car size)
cheers josh