Mine is at around 39,000. On longer journeys (say 3 hours) I am getting up to 75MPG. That is with occasional AC use and with what I'd call "sensible" driving - meaning, if I'm thrashing through traffic at 80mph, I wouldn't expect it to run at it's most economical.
On day-to-day, perhaps more like 60-65 depending. If I have a play with the sports button and have more "fun", probably more like 50.
I am measuring my MPG with the large LCD in the center, where you can reset/set your journey data. I've not reset the tiny screen by the steering wheel, so that is still set to an average from before I owned it (who knows when). So, if you haven't reset this, you should, as not everyone will have the larger screen to more easily reset data.
I have used v-power since buying it as well.
I'm sure if I had a longer journey without AC on, and without the occasional burst through traffic (or bad traffic), I would go higher than 75. But as it is, I'm pretty happy it can get up there.
Love driving it...