The 2010 Buick Lucerne is a premium full-size four-door sedan. Five passengers can sit comfortably while an optional bench front seat can increase that number to six passengers. A 3.9L V6 is standard on most trims and produces 227 hp. A larger 4.6L V8 is standard on the Super trim and pushes out 292 hp. Both engines are mated to four-speed automatic transmissions. 2010 sees the arrival of optional 18 in. chrome wheels, new backlit gauges, and all trims receive the fog lamps that used to be reserved just for the Super trim.