After a major interior and exterior overhaul last year, the 2009 Mercury Mariner focuses on performance-oriented updates. The four-passenger crossover gets one new engine and ups the horsepower on another, with the automaker claiming better handling and improved fuel efficiency. With SUV sales lagging due to rising gas prices, Ford hopes the updates reinvigorate its consumer base. But even with the extra power, the Mariner's styling and performance improvements still leave it behind the Honda CR-V and Hyundai Tucson. Replacing the old 2.3-liter four-cylinder is a 2.5-liter version that adds 17 more horsepower for a total of 170 hp (that's an 11% increase). Equipped with variable valve timing, it adds 1 mpg to fuel economy ratings. The optional 3.0-liter V6 returns, but with 230 hp, up 30 from 2008 and reducing 0-60 times by nearly 2 seconds. Both engines are paired with a new 6-speed automatic that replaces the outdated and clunky 4-speed. The new transmission feels smoother and brings the crossover more in line with other vehicles in its segment. Optional intelligent 4WD adds extra security by automatically distributing torque between the front and rear wheels when it senses slippage. New 16-inch low-rolling-resistance tires also contribute to improved fuel efficiency, along with more aerodynamic front and rear fascias that add a front chin spoiler and rear wheel spoilers. Enhancements to the suspension, which include a larger rear stabilizer bar, improve overall handling. Though not yet rated in crash tests, the 2009 Mariner comes with standard traction and stability control, 4-wheel ABS brakes, and dual front-side and side curtain airbags for both rows. The 2009 Mariner takes its environmentally conscious changes to the interior by switching to soy-based, rather than petroleum-based, upholstery. The crossover seats four or five, with 60/40 split-folding rear seats and a spacious 29-cubic-foot cargo bay that expands to 66 cubic feet with the seats down. An optional roof rack adds more storage space. Legroom averages 41.6 inches for front passengers and 35.6 in the back seat. Already well-equipped with full power features, cruise control, leather and chrome trim, and a CD player with MP3 jack, the 2009 Mariner now offers the Ford SYNC entertainment and communications interface (standard on Premium trims, optional on all others). This year the system adds a 911 Assist feature and displays Vehicle Health Reports. Sirius satellite radio is also newly standard and includes real-time traffic and weather when bundled with the optional navigation system. The Premium package ups the high-end factor with a power driver's seat, Alcantara leather upholstery, Bluetooth, wheel-mounted audio controls, and a 6-CD changer.