kelly 
2002 Nissan Altima Sedan 2.5 S 4dr Sedan (2.5L 4cyl 5M)
Don't buy 02, buy '03 or higher!
 Loved the car, but after having to have the engine replaced, i didn't feel comfortable driving anymore.  Engine was replaced under warranty at 60K miles, but i was told it was ok to drive until engine came in...only slight risk of fire!  Problem caused by catalytic converter separating and being pulled into engine.  I will never buy a first year production car again!