Fuel economy isn't always the proudest moment for crossovers, but the 2012 Lincoln MKX acquits itself fairly well, so long as you stay on track with front-drive models.
According to the EPA, the 2012 MKX checks in with gas mileage of 19/26 mpg, at least in front-drive form. Ford uses some technical tricks to extract those numbers from the big V-6 and six-speed automatic. Variable valve timing measures fuel more carefully depending on the power needs; the fuel injectors also turn off completely during deceleration, cutting down consumption even more. Ford claims this delivers a significantly higher mileage rating than some of the MKX's competitors.
However, the edge vanishes when all-wheel drive is specified. The EPA rates this version at 17/23 mpg--something worth noting if you don't regularly encounter winter weather.