Had a good 100 mile round trip yesterday, returned 57.5mpg from setting off and parking up back home. Had climate control on (no AC), car set to Normal, ACC set at 80 on the journey there (with quite a bit of variation of speed due to cars coming in front) and no ACC on the return journey.
Only got approx. 300 miles on it yet, but I am extremely happy with that.
Also, on the way to work which is 18 miles from my home, I returned exactly 50 mpg from setting off to parking up. Although traffic was quite bad, it is 90% motorway. Can't complain at all.