Most 4wd's use lots off fuel , we pay lots of tax on fuel , therefore 4wd owners are already paying more for there choices .
This is discrimination , 4wd owner/drivers should pay less for there fuel as they have to use more-- or-- be able to claim the excess discriminatory tax back pro rata to mile/kilometer-age comparing the vehicles consumption with that of say--- an Australiapost mail delivery mototbike--- as from the way these guys hit the verge's they must be classed as an off road vehicle.
Further 4wd owners/drivers should be encouraged to stay in the CBD and burbs where they will use even more fuel in the jammed up , rooted up road systems , this will ensure thier fair share of taxes keeps being paid in spite of the rebate.
NOW THAT'D BE FAIR