Should we still be measuring/comparing consumption in Miles per Gallon?
Especially since you cant buy 'a gallon' of fuel anymore (so you have to convert it from litres)
Then you have diesel which is quite a bit more expensive than petrol nowadays (muddys the figures by at least another 5%)
Also getting more and more LPG conversion which is about half the price of petrol (less than half of diesel)
considering all those things - MPG is no good for comparing like with like
I reakon we should start using pence per mile (my diesel is about 15p per mile)