Average mileage is around 19000km. Lets say fuel consumption is around 6l/100km giving a total of 1140 litres of fuel per year. Tax on fuel is currently £0.65 per litre so that is £741 per year on fuel tax. Road tax isn't insignificant but it is small relative to this.Flyfisher said:but I wouldn't say the 'road tax' element is insignificant,