Your question is easily answered by playing both games.
- Attention to details.
- Detail level for the tracks. Reason why some Pros use GT as a tool to learn tracks.
- The variety of cars.
- Graphically advantage for GT.
- I used to say GT has better physics but I won't do that now since I don't have any track experience to support my point.
====And the based on rumors====
- GT5 will have more cars + tracks.
- Forza won't have dashboard view.
- GT5 will include damage, weather and night racing.
What I was trying to say on the previous post was that GT is becoming more than a game while Forza is still just a video game. I consider that's leagues ahead of their competition.







