2013 Nissan Altima 2.5 SL 4dr Sedan (2.5L 4cyl CVT)
Purchased 2013 Altima August 2012 - my first (and last!) Nissan. Nothing but problems. Vibration/rumbling at 1500 rpm's a nightmare. In for service on 4 different occasions - dealership would never admit to problem - stated it was characteristic of CVT. Went to Nissan HQ - they finally admitted there was a problem. Referred me back to dealership to replace belt and tensioner. Worked ok for several hundred miles, then vibration returned. Could not take any more. Traded it in for a 2013 Toyota Avalon - took a loss, but hated the car. Also had problem with heated seats, wind noise protruding from side-view mirror, noise from power steering. In other words - a real lemon!!! Nissan the worst!!!
Loved the exterior/interior - top of line 4 cylinder with all bells and whistles (SL). Very comfortable seats and good gas mileage.
Admit there are problems - transmission, heated seats, wind noise, power steering - and resolve them to satisfaction of owners.