Buick’s full-size LeSabre sedan rides the same front-drive platform and is powered by the same 205-hp, 3.8-liter V-6 engine as the Pontiac Bonneville. (Pontiac also offers a supercharged V-6 for the Bonneville.) Custom and Limited models are available in the LeSabre lineup, and the Limited is equipped with GM’s OnStar communication system. Side-impact airbags, GM’s StabiliTrak electronic stability system and an XM Satellite Radio system are optional. Details on changes for the 2004 model year have not yet been released.