I've been playing Gran Turismo ever since the first one came out, and they keep getting better and better. The fourth one has 600 cars and nearly 100 tracks. There is so much to do. I also recently picked up the GT Force Feedback Wheel, which has 900 degree turn radius (like a real car), and fights against you in the turns. It has added a new life to this game and I'm still playing it. It just doesn't get old.