I bought the used 2011 Buick Lucerne Super because I had a Buick LeSabre Limited back in the day and drove it cross country with our family. What a great ride it was on the highways. Well, the Lucerne Super also has a super ride plus it has a peppy little V-8, excellent navigation, lane departure warning, and blind side warning. Yes, it has a huge turning radius but I have never turned around in the middle of a 4-lane highway yet. I bought the car for comfort and it delivers comfort in spades. Case closed! Update: I just completed a 1,000 mile trip of all interstate highways with my family of 3 adults and one child and we couldn't be more happy with the car's comfort, ease of driving, and cargo space. GM will rue the day it discontinued the Lucerne. The LaCrosse is a really great car but it's just not in the same class as the Lucerne when it comes to comfort and ease of driving on long highway trips with the family.
My Lucerne (Lucy) is a pretty car and she has never given me trouble. I wanted a white car, and got one used in great condition from a totally reliable dealer here in Tyler, TX. At first I didn't like how Lucy handled, but then, it is a 2009 Lucerne as opposed to my 1994 LeSabre, which I miss to this day. As for as a Buick, I am totally surprised with my choice to get another one but the LeSabre was a good friend to me, and I figured a 2009 would also be my reliable car. I recommend to anyone, get a Buick!
The ONLY problem I have with the car is the lane visibility in the drivers side mirror. It creates a "blind" spot that I have never had on any other car. Other than that, I am very pleased with it so far.
The 2011 seems to have fewer issues than it's previous years, however, I'd suggest you still look at problems reported, such as oil leaks and fuel filter issues. Not a bad car by any means. It's really just a grandpa car. That's all.