Bill 
2008 Nissan Altima Sedan 2.5 S 4dr Sedan (2.5L 4cyl CVT)
Will Never Buy the CVT Transmission again
 I had a 2003 Nissan Altima 2.5 SL that I loved i actually sold it before i would have to my nephew who needed a helping hand.  Hated to get rid of it.  I replaced it with the 2008 Atlima of the same trim.  At that time i didn't know much about the CVT transmisson.  Boy have i been dissapointed!!  The CVT Transmission fails miserably to deliver the engine power to the road.  It Revs up high and doesn't really do much.   I just turned over 155,000 miles which for a Nissan should stille be in its childhood.  Engine is still solid, i have nothing bad to say about the engine other than the mileage isn't that great 26 or so at best combined between city and hwy...could be better for a 4 cyl.  So here is the bad news.  At 155,000 i just spent $3500 to put  a new transmission in it...that's right one day while driving it just stopped!  Blown CVT!!  Cannot  be repaired, only replaced.  After doing some research i have learned that this is par for the course.  Some have blown as early as 20,000 miles (in Fairness Nissan has stood behind those), but most blow before 180,000.  Extended warranty ran out after 120,000 and at 155,000...gone!  For the record, my nephew is still driving the 2003, it has 230,000 miles on it and both the engine and tranny (traditional transmission) are still running strong!  Never again will i buy a Nissan!!  The CVT is the worst thing to happen to cars!!