Bill 
2002 Nissan Altima Sedan 2.5 S 4dr Sedan (2.5L 4cyl 5M)
Beware when you go over 100K miles
 The car was great until 100K miles.  Since then replaced cat converter, O2 sensors, fuel door and driver side door handle and now the head gasket blows.  Went on other forums and it's a typical problem that was known by Nissan.  Won't buy another Nissan. Don't buy a used 2002 Altima.