I agree LFS is great game. But my problem with LFS is that NO AI in this sim. It's really boring and great mistake of developers. I'm very busy man and now I haven't already time for online-driving and leagues so now I play in rF sprint-races with AI or hot-lapping sometimes.

Quote from Bose321 :

Your sarcasm is really good.

it's not sarcasm! No! Rfactor is realistic sim, and it's true. So I am real driver and have a own car. So I really know what is real driving. Of course there are arcadish mods for rfactor, but there are many real good mods with realistic physics and feelings and handing. And also remember there aren't any sim for PC in the world with totally realistic physics. Only real driving is perfect so have a fun!

Of course LFS is great game, but I think rFACTOR is much more better than LFS. Because rfactor has biggest community and more leagues, sim-racers, servers for racing, mods... Rfactor is awesome game! It's really hard-code sim, but never arcade! I have a lot of fun with playing rfactor! And...soon will be...rFACTOR2! It's great!