Nuked leftovers ultimately disappoint. Pop a plate covered with plastic wrap into the microwave, heat on "high" for a minute or two, and the food will bubble and steam. Take off the plastic wrap, stir, and the insides are still cold, perhaps even frozen. And even if lunch is heated completely through, it is fleetingly appetizing, because five minutes later the grub is as cold as ice.

Buick suffers the taint of microwaved leftovers. With the introduction of the 2006 Lucerne at the 2005 Chicago Auto Show, every model found at a Buick dealership looks and smells like it's ready for consumption, but possesses the shelf life of leftover lasagna. LaCrosse, Rainier, Rendezvous, Terraza, and now, Lucerne, are band-aids designed to shore up sales until the real Buick renaissance begins with the reintroduction of rear-wheel-drive to this formerly proud premium General Motors division.

Of this rag-tag group, however, the 2006 Lucerne has clearly benefited from the revitalization currently sweeping GM. General Motors North America President Gary Cowger, before introducing the Lucerne to reporters, held it up as an example of "the energy, enthusiasm, and emotion which depicts GM today" and called it a car "for the dreamer in all of us."

We're not drinking the corporate Kool-Aid, but upon initial inspection the new 2006 Lucerne, more than any other vehicle found in a Buick showroom, serves to support the brand's positioning of attainable elegance. This is no dream car, but it strikes us as an interesting alternative to the equally cushy Lexus ES 330.

Replacing the LeSabre and Park Avenue in Buick's lineup, the Lucerne is a large, front-wheel-drive sedan based on an extensively re-engineered version of the existing LeSabre platform. GM's familiar 3.8-liter, 195-horsepower V6 engine is standard, but a 4.6-liter V8 estimated to make 275 horsepower is available, making the Lucerne the first Buick passenger car in a decade to be equipped with an eight-cylinder engine. Either engine is matched to a four-speed automatic transmission.

Handsomely styled, the Buick Lucerne would convince as a luxury car were it not for the return of port-holes to the front fenders. This heritage design cue somewhat clutters the Lucerne's clean flanks while instantly identifying it as a Buick. That's too bad, because from the back, some might confuse it with the much more expensive Volkswagen Phaeton.

Inside, a new dashboard features tighter seams and flush surfaces, helping to impart a quality, upscale look and feel. The Buick Lucerne includes QuietTuning, body insulation designed to reduce wind, road, and engine noise in the cabin. The Lucerne features plenty of room for five passengers, and standard safety equipment includes a dual-stage driver airbag, a new dual-depth front passenger airbag, side-impact airbags, and side-curtain airbags. The dual-depth airbag design takes occupant seatbelt usage, seating position, and crash severity to deploy the front passenger airbag at a shallow depth or a deeper depth to protect the passenger. The 2006 Buick Lucerne is also equipped with OnStar telematics, which includes a notification system that alerts rescue personnel in the event that the airbags deploy. StabiliTrak stability control also comes standard.

In Chicago, Buick displayed the top trim level, called the Lucerne CXS. Features of this model include the V8 engine, a remote engine start feature, a magnetic ride control suspension, 18-inch chrome wheels, and chrome exhaust tips. Inside, the Lucerne CXS is decked out in wood trim, French-stitched leather upholstery, and includes a 245-watt Harman Kardon audio system with XM satellite radio. A heated washer fluid reservoir and rain-sensing wipers keep the view ahead clear, while an available DVD navigation system helps to point the way. Those living in extreme climates will want the available heated and cooled front seats to keep winter and summer at bay.

Arriving in the fall of 2005, the 2006 Buick Lucerne is yet to be priced. We'd guess that base models with the V6 engine would overlap with higher-end versions of the Buick LaCrosse, with loaded Lucerne CXS models closing in on $40,000.

Though Buick still has a ways to go before it truly represents attainable elegance, the 2006 Lucerne is a clear step in the right direction, if not the final piece of the puzzle.