The switch to smaller and more fuel-efficient vehicles was largely in response to the proliferation of large gas-consuming vehicles like SUVs, but in recent years automakers have found a compromise by offering larger vehicles with hybrid capabilities.

Drivers searching for used hybrid SUVs will have a number of options in terms of models. In terms of pure fuel-efficiency, the Ford Escape Hybrid leads the way with 32 miles per gallon (mpg) combined. Savvy shoppers will realize that the Ford Escape shares this title with the Mercury Mariner Hybrid, a similar vehicle that is also manufactured by Ford. With the discontinuation of the Mercury brand, the only place to find Mercury Mariner Hybrids will be on the used market.

Luxury automakers have also unveiled their fair share of upscale high-end SUVs. Models like the Lexus RX 450h and the Mercedes ML450 hybrid are two examples of this trend. Others, like the Audi Q7 TDI and BMW X5 xDrive 35d, have gone the diesel route, opting for clean diesel fuel to increase efficiency and reduce emissions.

Finally, those who want the most space possible will want to look at models like the Chevrolet Tahoe Hybrid or Cadillac Escalade Hybrid, which both offer a huge amount of roominess while still cracking 20 mpg.