Forza 2 owns

I like Forza2 for its depth in terms of tracks and cars but GT5P drives more realistically and...
 

the graphics are better, not to mention GT5P has a cockpit view for each car that is staggeringly accurate. Even the tach, speedo, and various instruments work in real time as they should. The BMW's have iDrive and even the Nissan GTR has a working multifunction LCD display. The R8's interior looks almost as beautiful as sitting in a real one.

No doubt the final version of GT5 will pwn all once it's finally released in about 10 years ;)

Forza vs GT5 aka XBOX360 vs PS3
 

Havent played GT5 but if you're into the cockpit views and only own the XBOX360 and not the PS3 PGR is the way to go. PGR has RS4 and R8 and both have amazing cockpit views and graphics in general. Driving physics is also a lot better on PGR compared to Forza which has the same Audis but there you cannot mod cars like forza.

I think you mean the physics is better on Forza than PGR. PGR is an arcade racer.
 

Forza is more of a simulation...

Having said that, I enjoy playing both.

On the PS3 side, I haven't downloaded GT5 Prologue yet as I haven't decided if I want to pay $40 for an extended demo.