“All Buick models come standard with the industry’s best coverage, including a four-year/50,000-mile vehicle warranty, and a five-year/100,000-mile powertrain warranty.”

And that good warranty is the most boring thing about Buick’s new models. Buick is reclaiming it’s prominence in
the car buying public’s consciousness by reintroducing Buick’s definition of “super”.

“Buick has rekindled a name from its storied 20th-century past to mark the beginning of a new level of refinement: Super. The badge is designated exclusively for Buick’s most premium, powerful models and returns to Buick vehicles after 50 years. It will debut on the 2008 model year LaCrosse and Lucerne sedans.

“We’re bringing back the Super badge to represent our most premium models,” said Steve Shannon, Buick general manager. “Our Supers are not just about increased horsepower; they represent an elevation in design, premium content and ride characteristics that are exclusive to the Super badge.”

GM Performance Division

The Supers are engineered for Buick by the GM Performance Division to inspire performance on demand. The LaCrosse Super is powered by a 300-horsepower (224 kW)* 5.3L small-block V-8 with GM’s Active Fuel Management technology. The LaCrosse Super’s chassis has been sport-tuned to deliver responsive handling characteristics, and the vehicle maintains Buick’s renowned quietness inside.

The Lucerne Super adds a more powerful version of the legendary 4.6L Northstar V-8. It is rated at 292 horsepower (218 kW)*, an increase of more than 6 percent over existing models. The Super has an enhanced chassis with a specially tuned version of Lucerne ’s Magnetic Ride Control system, for a refined, premium ride that simultaneously enables crisp, responsive handling.”
(Source)