Hyundai/Kia makes a second appearance on this Top 5 list with the Hyundai Tucson, which just barely beats its Kia cousin, thanks to its smaller 2-liter engine. We think we'd still take the more powerful Kia in this case.
Once we'd dismissed our delusions of rally-bred glory, we quickly realized that the light Mitsubishi Outlander was top of its class in fuel efficiency, even in our all-wheel-drive trim. Stepping down to front-wheel drive easily pushes the Outlander Sport to the top of our Top 5 list.
EPA combined estimate: 31 mpg (Mini) and 27 mpg (Nissan)
One's a tiny SUV that's technically classified as a passenger car, the other's a tall car that somehow slips into the SUV category, and we'll bet that you can't tell us which is which. Either way, the Nissan Juke and the Mini Cooper Countryman may top your fuel sippers list, if you consider them SUVs at all.