Stan 
2007 Nissan Sentra Sedan 2.0 S 4dr Sedan (2.0L 4cyl CVT)
Abnormal Rear Tire Wear
  For the most part, I love my Sentra. Positives are the high driving position, the smart key (which has spoiled us), the responsive CVT transmission, good fuel mileage (average 28-32 MPG in combination driving), and Sentra's great exterior styling.  Negatives include small trunk, wind stability, and a unexplainably discolored center storage compartment. I have also been thru 2 sets of rear tires in only 42,000 miles, which the dealer service dept was unable to explain to my satisfaction. Says they are not out of alignment.  I thought it was very commendable that Nissan also extended the warranty on the CVT to 120,000 miles showing their confidence in that technology.