Your right, I didnt include GST in my posts as Krishy asked only about shipping cost, not how much the total importing for the car. But yes my total customs Broker Fee ended up being ~$3,600 broken down like this:
Shipping $1090
Warfage $620
Quarantine $100
Broker Fee $150
Inland Transport $100
Storage $480
GST $1100
Total Shipping & Taxes $3,690
So the total for the car was the FOB price in Japan, The above cost, then compliance and tyres