I didn't want 4x4 either but to get all of my options, I had to order it. I used to own a 4Runner for 18 years, and can count on both hands the times I used 4x4. It was nice to have when it snowed, but here in the Vancouver BC area, we don't get tons of snow. I don't think the mpg will be much worse on the newer 4x4's, here's hoping that will be the case!