Don't know whether its available in the US - the site wouldn't wake up and talk to me this morning - but I drive a Renault Kangoo and get round about 10 to the litre. Beauty of the Kangoo is that its a standard car that will also take a huge load while still operating as a car - no problem taking kids and their instruments to a gig for instance. Or a full load of people and half a dozen bales of hay. Rear seats will also fold down to make it into a decent size van. I took four six foot soccer players to a match the other day whilst simultaneously taking dead washing machine and fridge to recycling centre. Which is pretty good at that mileage.
Mind you you wouldn't want to be doing an overtaking in risky places. It doesn't do acceleration. kathryn