My car has covered almost 30K now. Average real (non-trip computer) fuel consumption I'm currently getting is 52MPG (comp shows 56MPG). If driving it like a granny I can see 59 real MPG... Taking my brain out and the figure can drop to 42MPG! When I first got the car with 11K on it, it was averaging approx 5MPG less.
Turn climate control off and I'd see a couple more MPG on top of those figures, but I like my comfort.... lol
All-in-all it's not at all bad for a nippy car!