New legislation to effectively introduce all prices as driveaway

Some new legislationis about to come into effect that in essence will force car dealerships to advertise all their car prices as driveaway - i.e. it'll include such things as CTP insurance, dealer delivery and stamp duty into the charge. While this may be a good thing (it'll make my job in comparing car prices much easier!) it may also be bad thing for both car dealerships and car purchasers that like to haggle, since will there be much leeway to do so with a mandated minimum price set?

EDIT:

Oh and just in case anyone was interested, here's the ACCC's manual that explains what's going on.