The 2012 Azera has a revised, direct-injection version of Hyundai's 3.3-liter V-6, fitted to a six-speed automatic transmission, and thanks also to the Azera's improved aerodynamics this year it achieves EPA ratings of 20 mpg city, 28 highway, for a Combined figure of 23 mpg. And it has no requirement for premium fuel.
As in Hyundai's other models there's an Active Eco function that smooths out the throttle and transmission when cruising or accelerating lightly, allowing shifts to happen a little earlier and resulting in up to a seven-percent improvement in real-world fuel economy, according to the automaker.
On the other hand, Buick offers a new eAssist version of its LaCrosse, pairing a four-cylinder engine with a mild-hybrid system, to achieve a highway rating of 37 mpg. And in the upcoming, redesigned 2013 Ford Taurus, a new, more efficient turbocharged four-cylinder engine will top 30 mpg on the highway.
NOTE: The 2012 Azera is one of a set of vehicles found to have overstated fuel-economy numbers. Hyundai initially submitted figures of 20/29 mpg to the EPA, but the agency found the actual tested fuel economy to be 20/28 mpg. Owners can register with Hyundai to receive reimbursement for the gas consumed above and beyond expected levels; more details are found at HyundaiMPGInfo.com.