Sadly - tis not so. . .I kind of got stuck with it. . . but when the program was in swing I looked into ti - there just aren't very many option for large-family vehicles that qualify as 'efficient' - you have a lot of people = crappy gas mileage, no way around it.
If I could go back in time I'd get a different vehicle but it would be the same story - 5 years ago there were no fuel efficient or hybrids at the used carlot.