Hi
Just thought I would add... that some Irish insurance companies only give a 3 month 'green card' to cover your car while living and driving outside of the country.....so you might want to check with your insurance company also. We were not aware of this when we first moved. We had to then have our vehicle insured by an English insurance company.
They new insurance company first gave us a cover note....while we had the road worthiness test done. I am almost sure there was also VRT payable if the car was under 10 years old.