Got any no claims discount? Might be best aiming for low insurance group rather than mpg, depending on projected use. Honda for reliability is a reasonable starting point, but you could tell us a bit more to help better.
Mileage per annum?
Any child shaped objects to carry?
I would look at petrol, likely Japanese and underrated. So Auris or Avensis, Civic or Accord, 323 or 6. Or fall back on the obvious Focus or Mondeo.