Thing i always think is.. we cant really say if GTR2 has real physics because none of us have driven a big GT car (i think anyway) so its hard to tell, where as on LFS, i would guess everyone has driven a real life counterpart of a LFS car..
I still prefer GTR over LFS because of the fact theres so much more content, and more is being made to a high quality.. but thats my opinion
Harjun if your gonna mess around with comps you may aswell look for a second hand old one.. mess around with that, so if you do happen to mess something up, its not the end of the world