If a vehicle is registered with RRdJ and there is an accident and someone is injured. Who covers the medical and other costs. CQV trust???

CQV trust however assuming your STRAW owns nothing otherwise they will sue it to collect. You can have insurance with your RRDJ AUTOMOBILE to ensure you have backup cover, just in case.

Some members have a third party insurance with RAA Premium Comprehensive Insurance. Covers up to $5 million if I injure another.

You might also ask AAMI they seem to insure vehicles and take the number plate.