Should be one rate of car tax for all cars.
It should be down to usage and economy, ie fuel tax not a fixed rate.
Would seem the fairest way Martin...
The more you drive, the more you pay...via fuel used, not by road tax.
But the Government already 'enjoy' the road tax revenue
and the fuel tax along with fuel duty, so all bases are perfectly covered:
You keep your car in the garage more than you use it to "save the environment" = Government still receives road tax + fuel tax + VAT when you do go out and burn a gallon or two.
You drive your car 3,000 miles a week and say "sod the planet" = Government receives road tax + fuel duty + VAT + taxes on everything you purchase to maintain your car with that high mileage! If you are a company car driver, you are also penalised via your Income Tax.
Yep, the Government are the winners all the way to spend your motoring taxes on whatever they want to
Road Tax or no road tax; global warming or no global warming, the end result will be the same - you the motorist will pay regardless!!