2011 Nissan Altima 2.5 S 4dr Sedan (2.5L 4cyl CVT)
I recently purchased a 4-cyl. 2011 Altima with the SL package and the Bose premium sound package w/ backup camera.
I love this car and I am very happy with my decision after putting about 500 miles on it.
I was on the fence between the Sonata and the Altima for a while, but ultimately decided I liked the styling and smooth ride of the Altima better.
A small part of me wishes I went with the V6 but it was signifiantly more money and I wouldn't be averaging 26 miles per gallon as I am with the 4 cylinder.
The 4-cyl. offers plenty of power 95% of the time.
I recommend the SL package and Bose system which produces outstanding sound quality, and I would also add a spoiler.