ok all this is a little contradicting each other
i've spoken to a cop about this and this is what he said...
from JULY 2008 (thats when the p plate system got split into red and green)
no v8's no turbo's AND power to weight still applies!
they have a list of cars that are not permitted for p platers to drive BUT even tho the DC5R JUST exceeds the power to weight ratio limit its not on there! however the DC5S is!