The then Government promised us 20 odd years back that the road tax would be abolished and all the tax placed on fuel. That has two massive benefits: it is simple and cheap to implement because the mechanisms are all there, and in so far as they want us to reduce CO2 emmissions, it discourages us directly owing to the cost of fuelling a large engine. But they now tax according to theoretical emission numbers which are of course directly obtained by multiplying mpg by a constant number. It is bogglingly complicated and I currently haven't a clue how much I'll be forced to pay next year.
But they don't understand or care that the system is complex and expensive to operate - the Computer allows madness to reign. And we all know that theoretical fuel consumption figured are almost entirely fictitious.
And of course once I have paid the outrageous tax on my big car, I shall b****y well use it! The tax does not discourage use. They don't want to do that because rural voters then find it more costly to drive to work!
And when we've all gone electric, they'll have to reinstate car tax or they won't be able to subsidise the railways. All the railway subsidies come to less than one third of the vehicle taxes they raise last time I looked!
Grumpy Old Man...