I've never ever ever ever ever ever ever been able to drive dedicated racing games with analog sticks. Even games like Enthusia which force you to use analog sticks from the beginning. Now, for some driving games (like GTA) I can do so, but not racing games, and not dual analog.
Interestingly enough, for some games I am considerably faster with a wheel than I ever was with a controller. Even more interestingly, GT4 is not one of those games. I still play GT4 with a wheel, but I am quite poor at it.