How they are advertised
GT2 is mostly advertised as a driving simulator, in fact on the front of the cover it says, "The ultimate driving simulator," while NFS (Need For Speed) is advertised as a type of fun arcade style game.
Need For Speed
First let us go over NFS. NFS has about 8 beautiful tracks, and about 15 detailed cars. But it has one thing that separates it from GT2. It is high pursuit and high stakes mode. In high pursuit mode, you become the police officer and chase after the cars; you must do anything possible including crash and corner the car that you are chasing. It is a very fun thing but often times gets boring after about half an hour. In high stakes mode you and a friend must bet your car on a race, the winner takes the losers car, it is an easy way to win cars but also to loose them. In this game you can do level 1, 2, 3 upgrades to your car and make it better, and increase your chances of winning.
Gran Turismo 2
GT2 also excels in its variety of tracks and cars, there are about 24 different tracks, and they are modeled after real life tracks. There are also literally hundreds of different cars to choose from. What makes this game good...