America's best-selling full-size car was redesigned for a mid-1999 debut as Buick's first 2000 model. Slightly taller and wider on a longer wheelbase than before, LeSabre shares its structure with the Cadillac Seville, Pontiac Bonneville, and new Oldsmobile Aurora. Among new features are standard front side airbags and independent rear suspension.

An unaltered 3.8-liter V6 and automatic transmission are the sole powertrain. Traction control is optional and antilock brakes are standard, with standard 4-wheel discs replacing rear drums. Custom and Limited models return, both available with a Gran Touring package with firmer suspension and 16-inch wheels in place of 15s. A revamped interior offers a split front bench seat or optional buckets with center console. Safety belts mount to the outboard front seats, which Buick says are shaped to reduce whiplash injury. The side airbag for the driver protects chest and head; the front passenger's covers chest only.

Remote keyless entry and automatic-leveling suspension are standard. A new Driver Confidence Package option includes self-sealing tires, head-up instrument display, and GM's StabiliTrak antiskid system. Other new options include a trunk-mounted 12-disc CD changer, power sunroof, and rain-sensing windshield wipers. The Limited has standard heated front seats and mirrors and GM's OnStar assistance system.