Took mine out on run today, about 125miles round trip, mainly single carriageway 60mph A roads (A68).
I usually get around 37-39mpg on shorter runs (20 mile round trips on 30 and 50mph limits) so was quite shocked to see an average of only 34.4 when I got back!.
My full tank range, which when I fill up says 370 (I usually manage more then that) now works out at 340 miles!.
My previous 1.2 manual petrol Yeti (brick on wheels) would do the same journey at around 39-41mpg.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!