53p (+20% VAT) per litre for a car that uses 7.5 litres per 100km is about £48/1000km. The average UK mileage has dropped a lot over the years and is now just

53p (+20% VAT) per litre for a car that uses 7.5 litres per 100km is about £48/1000km. The average UK mileage has dropped a lot over the years and is now just below 7000 miles a year. An odometer duty for that would be about £200, or £17 a month. If HMRC bring in £35bn a year in fuel duty a year for 45m drivers (the number of people with active driving licenses) that’s more like £700 a head. Why the threefold difference?