4Runner SR5. Terrific fuel efficiency for an SUV! Talk about rare! If you're looking for comfort and reliability that won't cost you tens of thousands then come check out this SUV today. It's an amazingly fuel efficient Toyota. No longer will you break the bank when you pull up to the gas pump. New Car Test Drive said, ...the 4Runner represents Toyota's best effort at delivering outstanding off-road capability with high levels of comfort and convenience for everyday use... It scored the top rating in the IIHS frontal offset test.