Re: The road tax won't go...yet
"As the car's get more efficient, electrics get more popular, then tax collection drops. So they need some sort of permanent tax to screw everyone over equally."
On fuel efficiency they simply adjust the bands, as they currently do, so no requirement there. And EVs currently get a £5k cash subsidy up front, and exemption from CO2 rated excise levy (despite the CO2 emitted by power stations on their behalf). The longer term plan by the bureaucrats is "road pricing", which will be another opportunity to tax mobility for the simple reason that they can.
Rolling another £6bn onto fuel duty would have been far more sensible. The whole ranking of excise duty was always a pointless waste of time, because fuel duty is automatically weighted towards higher fuel users, so larger vehicles, those who drive more, those who drive in congested conditions, those whose driving style is lead-booted.