I'm presuming its for the sedans also, but with the RTA who knows.......a buyer couldn't get mine because of this ruling, but as i say, I've seen quite a few coupes & sedans with red or green P plates stuck on the back.
quote from RTA website:
P1/P2 licence holders are restricted from driving the following 6-cylinder vehicles:
BMW M and M3.Honda NSX.Nissan 350Z and 370Z (including private or 'grey' import variants eg. Infiniti G35, Infiniti G37, Skyline 350GT (V35), Skyline 370GT (V36))