2013 Nissan Altima 2.5 SV 4dr Sedan (2.5L 4cyl CVT)
I bought a 2.5 SV in October 2012 and issues began within a few days of purchase.
The car is comfortable and responsive for a 4 cylinder.
The first 2 issues were a vibration when the engine was under a load and the other was some electrical issues.
The driver side door lock would actuate repeatedly without my doing anything and the window would go half way down or up then return any time I pressed the button.
The passenger side air bag warning light stayed on much of the time.
After 18 months and 27,000 miles, the electrical issues persisted, the alternator went out and so did the transmission.
I replaced it with a 2013 3.5 SL and within a week the transmission started acting up.