While not illegal in those states, you could still be stung for speeding over what is marked on the L and P-plates themselves (90km/h for L and red P-plates, 100km/h for green P-plates).

The CD-ROM is designed to teach L and P plate drivers about road safety. Written by ZDNET Editors, Contributor Oct. 17, 2004, 9:24 p.m. PT ...

While dozens speculated the reason for the L-plate in the comments, a NSW Police spokeswoman eventually explained to Yahoo what really occurred — and the answer's really quite a simple one.