I agree with Nathan.
I find it amazing how many people will floor their car everywhere and then complain that it doesn't achieve official figures.
I'm guessing with MPG that low you do mainly stop/start city driving, mainly short trips and you don't have the lightest right foot.
There are people on here with Eco's well into the 70's, so they can do it.
I agree, though some cars do seem to be strange in how economical they are...
My old 1.4 peugeot 106 would do 320ish miles to £35 every single time, whether i thrashed the pants off it or grannied it every day...
With the
Ibiza, its more sensitive to how I drive it in comparison. If im in stop start traffic it can sit around 35mpg, but then if i'm on a long steady journey it'll average well into 60 or 70mpg area, if not higher! With a mix of town and a few country roads during the week, i average 47-50mpg.
To the OP... Maybe your new ecomotive just needs breaking in time? So it'll get better mpg as you pile the miles on. Stay light with the right foot, anticipate people slowing down to reduce braking and see how it goes after a nice long run.