RChallenger 
2013 Nissan Altima Sedan 2.5 S 4dr Sedan (2.5L 4cyl CVT)
WORST Transmission EVER!!!!
 I bought my Nissan Altima and loved it AT FIRST. I hit 42,000 miles and the transmission went out on it. I didn't even have my car a solid year. I spent $4,500.00 to replace it. 11 months later, the transmission went out on it AGAIN!!! Costing me yet another $5,000. I have spent more in repairs than I have paying this car off. If I would have known that it was built with a CVT transmission, I would have NEVER bought this vehicle. The dealership informed me, that this is the WORST year model to have bought and that they have seen nothing but problems with the CVT transmissions, in the 2013's. The transmission has a "life span" of only 42,000 to 84,000 miles before going out and needing to be replaced. The transmission is built with belts and not gears. Nissan would not replace the transmission even though they know they have had nothing but problems and complaints with the CVT transmissions. This is by far the worst vehicle that I have ever owned. I can not wait to get out from underneath this vehicle.