2011 Infiniti QX56: Big on everything but the mileage - Boston Globe

" Those are the responses I got while piloting a 2011 Infiniti QX56. In a time of downsizing, high gas prices, and email signatures asking you not to print, I expected to be treated as an environmental evil while driving this large, luxury SUV. Instead, the Infiniti nameplate invited exemplary exultations. "Oooh, Infiniti, that must be nice. For its second-generation makeover, the QX56 hasn't really gone to boot camp. Standing 6. 3 feet high, 6. 7 feet wide (about an inch more than the last model), and measuring 17. 3 feet tip-to-tip, this landlocked Leviathan weighs nearly three tons. Infiniti worked to improve the Q's efficiency while adding more oomph. Engine tweaks are important if you're going to fill the 26-gallon tank ($104 at $4 per gallon) and hope to surpass the 14 mpg city rating. You're delusional if you think you could actually get 20 mpg on the highway empty (5,850 pound curb weight) or pulling a load of any sort (up to 8,500 pounds). Infiniti estimates 16 mpg combined but in my experience I found the computer to stick closer to 14 mpg in more than 400 miles of mixed mileage. Source: www.boston.com