The Buick Lucerne is a full-size automobile sold by the Buick division of General Motors that replaces the Park Avenue and the LeSabre in 2006. Although the rear wheel drive GM Zeta platform was considered, the production Lucerne introduced at the Chicago Auto Show on February 9, 2005, is a front wheel drive derivative of the G-body Buick LeSabre. Initial sales of the Lucerne have been strong, with the car claiming 24% of the full-size sedan market in the United States. (edit this text)