The Buick LeSabre is America's best-selling full-size car in and has been for the past 10 years. For 2003, Buick is celebrating this market dominance with a special edition of the LeSabre called (what else?) the Celebration Edition. Distinguished by body-colored trim and a two-tone leather interior, the Celebration Edition comes loaded with luxury and safety features. But for car buyers with traditional tastes, any LeSabre is cause for celebration. LeSabre offers a big, roomy interior, a comfortable ride, a big trunk, and it's packed with safety features. In short, the LeSabre brings all the traditional Buick virtues into a new era of fuel-conscious practicality. XM Satellite Radio is now available for Limited and Celebration Edition LeSabres. New 16-inch aluminum wheels are available with the Gran Touring package and all LeSabres are available in new metallic colors. Other changes for 2003 are minimal.