As far as i know there are the following restrictions in place: (for p plates)
1st Phase - 6 months (Red):
- BAC of 0
- Restricted driving hours. Cant drive between 12 midnight - 5am unless its for work in which they need to supply you with a letter incase you are pulled over to explain that your driving to work.

2nd Phase - 18 months (Green):
- BAC of 0

So from Learners to Provisional licence the only differences are:
- Max (legal) speed of 100km/h goes to 110km/h
- Max driving time of 2 hrs in one drive without a 15 min or more break is lifted and you can drive for how ever long you want to.

There are No Performance restrictions on any of the L/P plate phases.... yet
$100 fine if caught with out p plates displayed.

You have 4 demerit points for the year that your on l's get another 4 the first year on your P's then another 4 when you get your full licence -- Will need to check that though