Ok, so you 2 could live with that; so now lets take an example of people and vehicles that use the road far more and contribute to pollution far more. As it would be impossible to vary what different people paid for their fuel, dependant on the vehicles they drive; 13p per litre seems like a reasonable increase, based on Mr. & Mrs. average........and I think that figure would cover most Tax Bands.

So a haulage company running 6 X 38 T lorries each doing 100,000 miles a year, would incur the following costs:

With each lorry doing 20 MPG, they would use 5000 gallons of petrol per annum; as the 13p was in litres and as there are 4.546 litres in a gallon, that's 59p per gallon. For that one lorry, that's an extra running cost ,in fuel, of £2950 per annum....for the fleet of 6 lorries that's £17,700 per annum. Now there may be plenty of I can handle it types like you 2 around, but you really need to look at the wider implications; because haulage firms are not exactly having an easy time at the moment........So they'd either pass that cost on to you, or go Bust.........guess which one. Incidentally, it would more than cover their road Tax; which on a lorry that size is about £1,500 per annum.