I have only covered some 608 miles (TechLine 1.7 diesel, 2WD, manual).Trip computer showing average MPG of 55.7. No cruise control used. ECO button on and start/stopworks flawlessly.
Most journeys under 15 miles, mainly rural and small towns. Only 2 journeys of about 50 miles each, again mainly rural and small towns. No decent steady runs on motorway.
So really way too early for me to have a good idea, however, very pleased so far assuming computer is accurate.
Only filled tank once since purchase, came with piss all in the tank, thanks Evans Hellshaw. So over 600 miles on first tank and still showing 140 mile range left in tank. So looking very good so far.