I'm averaging around 30 mpg... around 20-25 with spirited driving and around 37 on a long distance trip.
My car has done 1500 miles though, so perhaps it will become better once it's worn in! Who knows...
Not too bothered really, buying a car like this and worrying about MPG is mental to me. Same as the people not using VPOWER etc. (or super unleaded at the very least)