Lucerne CX ($29,265) is powered by a new, 227-horsepower 3.9-liter V6.Standard equipment includes cloth upholstery, air conditioning, seats for five people with a power driver's seat, power windows, power door locks, leather-wrapped tilt steering wheel, AM/FM/CD/MP3 audio with six speakers and steering wheel audio controls, XM Satellite Radio, cruise control, electrochromic rearview mirror, and remote keyless entry.Added for 2009 are Bluetooth phone connectivity, cornering lamps, a six-way power passenger seat, heated outside rearview mirrors, an extended-range key fob, and 17-inch bright-silver-painted aluminum wheels.

Lucerne CXL ($32,520) upgrades with leather seats, dual-zone automatic climate control, universal home remote, and a cargo net.The CXL suspension is tuned a little tighter, too, and includes Airlift rear shocks for automatic level control.New for 2009 are eight-way heated front seats with power lumbar support and memory settings, a heated leather steering wheel, and turn signals integrated into the outside mirrors.

The Comfort & Convenience package ($495) adds dual-zone automatic climate control, a universal home remote and a cargo net to the CX.The Driver Confidence package adds StabiliTrak, Brake Assist, rear parking assist, remote starter, a theft-deterrent system and RainSense wipers with heated washer fluid to CXL ($995); or all of the above, plus the Comfort & Convenience package, to CX ($1,500).

CXL Special Edition ($33,120) adds chrome wheels and unique interior trim, and offers additional options and packages, including a heated wood-trimmed steering wheel ($100-150) and heated and cooled front seats ($895).But the only engine choice for the 2009 Special Edition is the new V6; a V8 is no longer available.

The get a V8 this year, you'll have to opt for the Lucerne Super ($39,315), powered by a 292-hp 4.6-liter V8 and equipped with Magnasteer power steering, Magnetic Ride Control adaptive suspension, StabiliTrak stability control with Brake Assist, and P245/50R18 all-season radials on 18-inch aluminum wheels.Inside, Super features a leather-wrapped upper instrument panel with French-seam stitching; heated and cooled leather seats with suede fabric inserts; Harman-Kardon audio; heated, wood-accented steering wheel on a power tilt-and-telescope steering column; wood shift knob; and other upgraded finishes and trims.The Driver Confidence and Comfort and Convenience packages are standard.Outside, the Super sports its own unique grille, front and rear fascias, extended rocker panels, and integrated dual exhaust tips.Chrome wheels are optional ($750).

Options for all Lucerne models include Side Blind Zone Alert ($395), Lane Departure Warning ($295), a power tilt-and-slide sunroof ($900), and an engine block heater ($75).Touch-screen navigation ($1,945) is optional on Super, CXL, and CXL Special Edition; the Harman Kardon stereo is available ($495) on CXL and CXL Special Edition; and a 6CD changer is optional ($300) on models.(But there isn't enough room in the dash for all three, so check with your dealer for limitations.) Six-passenger seating is available on CX and CXL by ordering front bench seats ($295).Some paint colors are extra-cost options.

Safety features on all models include six airbags: a dual-stage driver's front airbag and a dual-depth front passenger bag, front-seat side-impact airbags, and full-coverage side-impact curtain airbags.(The dual-depth passenger airbag has two sections; a smaller section deploys in a less severe crash or if the passenger is small or seated nearer the dashboard.In a bad crash or if the passenger is not wearing their seat belt the full bag deploys for maximum effect.) The front seatbelts come with pretensioners, so be sure to wear them.Traction control, anti-lock brakes, and a tire pressure monitor are standard on all models.OnStar comes standard and includes the first year of Safe and Sound service; OnStar operators will dispatch rescue crews if your airbag deploys and you don't respond to calls, a great feature for you and the rest of your family.

Chrome trim is kept to a minimum.Beside the grille, the only stylistic link to Buicks of old is the row of small portholes on each of the front fenders.They are also the only clue to what's under the hood: the V6-powered CX and CXL get three portholes on each side while the V8-powered Super gets four on each side.Flashback to the Fifties, when more powerful Buicks had more holes.They didn't serve any real function then and do not today, but we still like them.

The Lucerne Super is distinguished by a larger grille that cuts deeper into the front bumper and features fewer, thicker vertical bars.These grille bars turn sharply inward at the top, giving more definition to the waterfall effect.Below the new grille, the look is more familiar, with twin lower air intakes accentuated by chrome slashes that seem to point to the outboard foglights.

The smaller main grille of the CX and CXL is finer in texture, and is now chrome on the CXL as well as the CX.The twin lower air intakes on these models hide behind horizontal grillwork cut into the lower bumper.

The Buick Lucerne is built on the same platform as the Cadillac DTS and benefits from modern build techniques for a quiet luxury car.These include hydroformed frame rails for a stiffer body, and use of laminated steel with plenty of sound deadening material placed in strategic locations.Buick engineers shaped the outside of the door mirrors to lessen wind noise.These quiet-tuning efforts were evident in our test drives.

The center stack is located high for easy access, and contains large knobs for operating the climate control and audio system.

Bucket seats are standard, but buyers who want seating for six can order a traditional front bench seat.We found the bucket seats provide a good level of comfort and come with an armrest in the center console.

Rear-seat passengers are well taken care of with good headroom and excellent leg room.Lucerne's long wheelbase allows for a wider-opening rear door with almost no intrusion from the wheel well, making it easy to get in and out of the car. OnStar with Turn-by-Turn service comes standard and allows customers to talk to a live advisor who downloads complete step-by-step directions to the vehicle through the OnStar system.Audio directions are then automatically played through the vehicle's stereo as they are needed, triggered by the OnStar system's GPS capabilities.Drivers can be directed to their destinations without having to take their hands from the wheel or eyes from the road.New OnStar eNav allows subscribers to find and save destinations on MapQuest.com, and have those destinations sent to their vehicle's OnStar system.

A touch-screen navigation system is also available, giving the Lucerne driver the best of both worlds.New OnStar Destination Download enables OnStar subscribers with screen-based navigation to quickly input their destination via the press of a button; while new XM NavTraffic (available in 80 major North American markets) delivers real-time information about accidents, traffic backups, and road construction directly to the navigation screen.With or without navigation, all 2009 Lucernes come with an enhanced XM display that delivers more channel and artist information.

Bluetooth comes standard on all models and enables true hands-free calling.It uses OnStar's voice recognition to dial phone numbers, conversations are played through the Lucerne's audio system.

The steering is precise and responsive, and the suspension is well controlled, even at high speeds along not always smooth roads.After driving several different Lucerne models over the course of several hours, winding among the vineyards in the Santa Ynez Valley just north of Santa Barbara, California, we found that all handled with aplomb, exhibiting no wallowing or causing any untoward moments.A rigid chassis is the key to balancing sharp handling with a smooth ride, and Lucerne really delivers.

The high-powered Super comes with Magnetic Ride Control, which we found improved handling a bit, though the differences were not dramatic.Magnetic Ride Control is an adaptive damping system designed to enhance overall ride performance.With Magnetic Ride Control, the shock absorbers are filled with a synthetic fluid in which magnetically charged particles are suspended.By applying electric current to the particles, a computer continuously adjusts the fluid's viscosity according to varying road surfaces and driving styles.The system, which first appeared on the sporty Cadillac XLR, and then the Corvette, delivers a quicker response than earlier adaptive-damping setups that continuously adjusted the shock absorbers' main valves.

Powering the Super is a unique version of the 4.6-liter Northstar V8, rated 292 horsepower at 6300 rpm, and 288 pound-feet of torque at 4500 rpm.(Torque is the force you feel when accelerating from an intersection or up a hill.) The Lucerne Super V8 is EPA-rated at 15/22 mpg City/Highway.

The 2009 Lucerne CX and CXL models are motivated by a 3.9-liter V6 with continuously variable valve timing that delivers 227 horsepower at 5700 rpm, and 237 pound-feet of torque at 3200.It replaces last year's 3.8-liter fixed-timing V6, which was rated 197 horsepower and 227 pound-feet.Yet the new engine also achieves a slight improvement in fuel economy, with an EPA rating of 17/26 mpg city/highway ( Even with the increase in available horsepower, the new engine offers an estimated one-mile-per-gallon fuel economy improvement in both city and highway driving, vs.16/25 for the 3.8.The new V6 is also FlexFuel capable, meaning it can run on 100 percent gasoline, up to 85 percent ethanol, or any variation of the two.On E85, it is EPA rated 13/20 mpg, city/highway.

With the lighter V6, we found the Lucerne felt more agile on twisty roads.The front end felt a bit lighter.

The V8 engine comes with GM's electronically controlled Hydra-Matic 4T80 four-speed automatic transaxle, where the V6 uses the lighter-duty 4T65 four-speed.Both Lucerne engines feature electronic throttle control.

The new Side Blind Zone Alert system uses radar sensors on both sides of the vehicle (mounted behind the rear fascia) to scan a 150-degree field of view within a 3.5-meter range.Alternating radar beams sweep the adjacent traffic lanes to detect approaching cars.Vehicles entering one of seven zones identified by the system will illuminate an LED symbol in the outside rearview mirror.The system ignores stationary objects, such as fire hydrants or parked cars.

The Lane Departure Warning uses a camera, mounted near the inside rearview mirror, to identify traffic lane markings and provide audible alerts if the Lucerne should appear to be wandering from its appointed path.

NewCarTestDrive.com correspondent John Rettie reported from Santa Barbara, California, with editor Mitch McCullough reporting from Los Angeles and John F.Katz from south-central Pennsylvania.

The Buick Lucerne comes in several models.The Lucerne CX is tuned as a traditional Buick, with the Premium Ride Suspension.The Lucerne CXL comes with a firmer Ride and Handling Suspension, and is positioned to compete with the Toyota Avalon and Lexus ES 350.We found it a very enjoyable car to drive, with agile handling and plenty of performance.

A full-size, front-wheel-drive sedan, the Lucerne benefits from a larger, more powerful, and more efficient V6 for 2009.Horsepower is up 15 percent from 197 to 227; while fuel economy has improved from 16/25 mpg city/highway to 17/26.The Lucerne comes loaded with more standard features for 2009, including a Bluetooth hands-free phone interface.XM radio with NavTraffic is available.

The V8-powered Lucerne Super, first introduced as a 2008 model, delivers even more performance for 2009, plus Magnetic Ride Control, an adaptive sports suspension developed for the Corvette.

Advanced safety systems are available on all models.Side Blind Zone Alert uses radar to provide drivers with more information about vehicles in hard-to-see areas around the car.Lane Departure Warning uses a camera to warn drivers of inadvertent lane changes.StabiliTrak with Brake Assist is offered as well.

Buick has a long history of innovative engineering, handsomely conservative styling, and premium luxury at below-premium prices.Lucerne follows these Buick traditions.