RJones 
2004 Nissan Altima Sedan 2.5 S 4dr Sedan (2.5L 4cyl 5M)
A thing for Altimas
 This was my 2nd Altima.  I had a '95 that I bought used in '96, kept it until '05 (160k miles) when I bought my 2nd one (also used).  These cars definitely seem to have problems w/the O2 sensors (both of mine did), but overall are reliable.  Unfortunately, I just totalled my 2nd one (at 73k miles) so I am off this weekend to by another :(