It doesen't support Logitech G25 compatibility.
First of all the online. The producers say about the Formula BMW races that they are very aggressive and packed. Well, when I played online with these cars, the difference between the first and the second was either 1 sec, 30 sec, 1 lap or 5 laps. Also online isn't very much customizable at all. What you do is click host, change something and then you race.
In the game there are a lot of glitches. When I wanted to crash in some red walls, the car went through it!, and when I saw the replay, the front of the cars was intact and the back was damaged!. When I raced in a parking lot, I went through the walls and ended in the Oblivion.
But, the most bad thing about LFS is that it can't support Logitech G25! The controls like steer, change gear, ignition work, but the pedals won't work. The only way to accelerate and brake is to use buttons!
Live For Speed: A game that isn't worth your time and money.