Mustafa 
2001 Nissan Altima Sedan GXE 4dr Sedan (2.4L 4cyl 4A)
Good car to commute!
 I like that car so much. It has 143k miles on it, still no gasket and/or transmission problems. Besides, it is a great DIY car. There are bunch of videos on YouTube about that car, and the replacement parts are not expensive. Installing the replacements are easy as hell!  I have driven that car non-stop 450 miles. The only I would concern about that car is the gas consumption. It consumes a lot for a 2.4 4 cyl car (16/22mpg). You have to be aware of a point: 98-99 and 00-01 altimas are not completely identical (the interior as well); some of the replacements are different, such as shocks.