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I'm with you on that. Quite often when I'm on a long run, provided time is not an issue, I'll eventually just turn off the motorway (preferably in an area that I feel might be nice - lake district, borders, whatever) and just see what there is to see there.

On my current commute the 2011 107 used to do 60-65mpg
a 2017 Citroen c2 1.2 60-62mpg I had for a month in summer,
2012 1.6 ford fiesta metal 50-55mpg

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2012 Ford Fiesta metal edition
* Superchips Remap
* Pumaspeed induction hose and Pipercross filter
* Formula Power HT leads and Brisk silver spark plugs

It's the weather for breaking mpg records, open windows aside. Engines love running in this. Just done 154 on tbe first bar and at 257 with the second bar yet to go...it will imminently. Looks like I'm on for a 500 breaker on the first five bars.e

Well fwiw the splits on the first five bars were 154, 257, 334, 435 and 516 on approx. 7 gallons so going on 75 to the gallon. I'm a 60 per gallon man over the year but you need to be nearer 75 to the gallon mid Summer to smooth out high consumption in winter.

you guys seem to get a lot better than i do. then again the car is used for 3 mile trip to work and 3 mile back. so probably not getting warmed up enough. did manage 49mpg when 200 miles was on motorway. so i suspect it can do over 50mpg if all of it is motorway miles.
i suspect thermostat is probably dodgey since engine may not be getting hot enough. without a temp gauge i may need to do some obd testing at some point.

forgot to add mine is 1.0 petrol 2007 about 75k on the clock

diesel?

i think this is the key here. those who do 40 miles a day vs those who do 4 miles a day should see difference in economy.