It was a Budget Car Sales Rental. I wouldn't buy a Neon from them, since they get abused being economy rentals, but a minivan is not cheap to rent, so older and more responsible drivers usually rent these. My wife's gets around 18-20mpg.
Budget always has minivans.
When we were searching, we found that most of the MV's on the lots and in papers had high miles already, so be careful. Since your husband puts the miles on the vehical, see if you can get him an economical used car for work, as well as the MV for you. Since he is a Real Estate agent, he should be able to write off his as a tax deduction.