I live in South Australia. Taxes here are already high for everything road related; we already pay taxes for roads as part of Vehicle Registration (excluding compulsory 3rd party insurance); pay council rates (goes to roads), income tax (goes to roads), capital gains tax, and have a 10% GST (which may be 15% soon) which all feeds into the roads. Other parts of the world are providing incentives to EVs; but not here.