I tried this FREE videogame simulator some months ago. I didn't know freetrack yet. Today I installed it again, and I noticed there were the controls for look left up etc etc....and also ROLL. So I started configure virtual joystick as I did with GRID.
This is the result
http://www.youtube.com/watch?v=jrmOSwXgb10
BMW M3 Challenge is a huge simulator of BMW M3, and the movement of head is VERY SMOOTH and PRECISE. It is a complete 3 DOF head tracking, I even didn't miss the 6 DOF (such as live for speed).
6 DOF is very cool in live for speed, but this BMW M3 Challenge 3 DOF works VERY VERY well. ^_^