Another problem is that fuel taxes are a reasonably equitable means of paying for the roads, and EVs don't have that -- the closest would be vehicle miles * weight or some such.
Fuel taxes don't seem to take into account the quartic scaling of damage by vehicle weight on pavement.
Equivalents of fuel taxes for EVs have been announced recently - charging directly on a per mile basis.
> The rate of tax will be 3 pence per mile for fully electric cars; this is around half of the 6 pence per mile the average petrol or diesel driver pays in fuel duty.
https://www.gov.uk/government/consultations/consultation-on-...