Buick's popular LeSabre receives a considerable make-over with a sleeker outer appearance. A 205-horsepower, 3.8-liter Series II V-6 powerplant, standard four-wheel disc brakes as well as available features like StabiliTrak electronic stability control and a cabin air filter details changes for the 2000 Buick LeSabre. Both Buick mid-sized sedans gain noticeable refinements for the 2000 model year. A split-folding rear seat is standard on all Buick Regal models while the GS model gains no-cost side impact airbags. The 2000 Buick Century receives an upgraded 3.1-liter V-6 engine resulting in an output gain from 160 to 175 horsepower. Providing the mid-sized six-passenger car with a dapper appearance, The special Century 2000 edition rolls with a blacked-out grille, alloy wheels and a steering wheel with mounted audio controls. For 2000, all Buick Century sedans gains dual-zone climate control. On the full-sized Buick Park Avenue, front side airbags are now included on all models while StabiliTrak stability control is standard on the Ultra model.