Well, Forza and GT obviously have much higher detailed cars and tracks. Physics wise, LFS is definitely much better but if I were honest, I've got back in the groove again in Forza and, IMO, they've got a ton of realism in there too. GT, I haven't tried it but I heard that Forza is more realistic than it. Anyway, back on topic, remember that LFS is a developing title
. We're still S2 Alpha now and the graphics are pretty good but they will be improved as Eric makes further developments.
I believe that S3 could well look like something Forza or GT or for lower aims, maybe GTR2 or RACE. Just try to remember lads, LFS is still in development
. In all departments that really matter in a racing game (Physics, Graphics & Multiplayer code) are still being developed
. The physics and multiplayer code are already the finest you can get. Graphics can be improved but the point of all this, is that it WILL get better. All other games like GTR2 or Forza are finished products. True, I remember that when I patched up GTL there a while ago, they improved the physics but it still wasn't amazing.
Patience is the key