medinamv 
2009 Nissan Altima Sedan 2.5 4dr Sedan (2.5L 4cyl CVT)
Thee Worst Nissan ever owned!!!!
 I have owned about 9 brand new nissan 10 used ones. from 1979 till 20095/pick-ups /3-200sx 5-altimas (2 have 200k onthem) 3/240sx and yes even my toys 2001 Skyline/2001 silvia S15 bluetop (stationed in Japanand now in the states with daddy) plus 3 sentras. never any problems at all!BUT!my 09 Altima 2.5s is the biggest dissappointment ever/ engine replaced at 30k for Knocking/ wears tires on rear evry 20k but alignment shows it is fine. now tranny at 59k and engine noise is back. real loud in mornings like oil is not getting up to top end. I am going to trade in ASAP on A Hyundai or VW Passat asap! I have owned my last Nissan.