Buick buyers can once again choose a V8-powered sedan with the introduction of the 2006 Lucerne. Available as an option on the CXL and as standard on the CXS, the Lucerne’s 4.6-liter V8 produces 275 horsepower. Base CXL versions get a tried-and-true 3.8-liter V6 pumping 197 horsepower. Power is run through a four-speed automatic transmission to the front wheels and the Lucerne is available in five- or six-passenger configurations.