I can't do that in my mouse. What mouse are you using? --- Post updated --- I can't do that in my mouse. What mouse are you using?
While I do have a razer mamba, I don't think mouse matters that much. I've drifted for a long time in another game (LFS) and you can do it with just about any cheap 20 dollar mouse. Just make sure your mouse acceleration is off and that your mouse steering settings are linear. (The sensitivity/linearity option must be set to 0 when you assign the mouse to steering, and deadzones should be at 0) Thanks