I recently imported three cars from a prestigious australian company and had trouble with all three cars.
The main problem which (IMO) is definately the responsibility of the Co. involved was that NONE of the air conditioners were degassed. This resulted in the cars being held up by the Dept of Environment and Heritage. I was charge storage fees while they argued with my customs agent. One car racked up $1200 in storage fees alone. Then the cars had to be degassed and regassed with ozone friendly stuff. This cost $275 per car. Sure the Co. refunded the money I had paid at the time of purchase to have the cars degassed (it was on my invoice) but I am still thousands out of pocket.
Two of the cars had to straight to the crash shop with undercarriage damage and rust. Again I had to fork out thousands. Despite using their sites' cost calculator, when import tax was 15% and not 10%, each car went $6000 over budget. That's $18,000 all up and put me under a lot a financial stress!! I had allowed for some extra expenses - and there was several with each car, but not another $18,000.
The lack of communication from the Co. also frustrated me immensely. And their solution to the lack of degassing was to lie to the government! Nice. (I followed their sugggestion and it resulted in increased delays and further $)