2006 Buick Lucerne CXL V8 4dr Sedan (4.6L 8cyl 4A)
Owned this car for three months and love its handling, performance, and styling. If you can afford the extra money and the 2 less miles/gallon, the Northstar V8 is the only way to go. Much more refined than the 3.8 6 cyl. Also the speed sensitive steering with the V8 makes handling much better. Without it, the car's steering is too loose and gives the feeling of instability at higher speeds. Quietest car I've ever owned.
Northstar V8, Quiet ride, Good sound system.
Front seat bottom cushions should be a couple of inches wider. Cup holders marginal. Had a problem with defective chrome plating on wheels and still waiting for replacment parts.